From 1324696bf10e2c6a9a64ac45b850ddc2deb848a6 Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Tue, 2 Jun 2020 09:20:15 -0700
Subject: [PATCH 01/17] fix: improved uuidToBytes

---
 src/v35.js | 47 +++++++++++++++++++++++++++++------------------
 1 file changed, 29 insertions(+), 18 deletions(-)

diff --git a/src/v35.js b/src/v35.js
index dc7775fe..ce43e234 100644
--- a/src/v35.js
+++ b/src/v35.js
@@ -1,29 +1,40 @@
 import bytesToUuid from './bytesToUuid.js';
 import validate from './validate.js';
 
-// Int32 to 4 bytes https://stackoverflow.com/a/12965194/3684944
-function numberToBytes(num, bytes, offset) {
-  for (let i = 0; i < 4; ++i) {
-    const byte = num & 0xff;
-    // Fill the 4 bytes right-to-left.
-    bytes[offset + 3 - i] = byte;
-    num = (num - byte) / 256;
-  }
-}
-
 function uuidToBytes(uuid) {
   if (!validate(uuid)) {
     return [];
   }
 
-  const bytes = new Array(16);
-
-  numberToBytes(parseInt(uuid.slice(0, 8), 16), bytes, 0);
-  numberToBytes(parseInt(uuid.slice(9, 13) + uuid.slice(14, 18), 16), bytes, 4);
-  numberToBytes(parseInt(uuid.slice(19, 23) + uuid.slice(24, 28), 16), bytes, 8);
-  numberToBytes(parseInt(uuid.slice(28), 16), bytes, 12);
-
-  return bytes;
+  let v;
+  return [
+    // Parse ########-....-....-....-............
+    (v = parseInt(uuid.slice(0, 8), 16)) >> 24,
+    (v >> 16) & 0xff,
+    (v >> 8) & 0xff,
+    v & 0xff,
+
+    // Parse ........-####-....-....-............
+    (v = parseInt(uuid.slice(9, 13), 16)) >> 8,
+    v & 0xff,
+
+    // Parse ........-....-####-....-............
+    (v = parseInt(uuid.slice(14, 18), 16)) >> 8,
+    v & 0xff,
+
+    // Parse ........-....-....-####-............
+    (v = parseInt(uuid.slice(19, 23), 16)) >> 8,
+    v & 0xff,
+
+    // Parse ........-....-....-....-############
+    // (This uses "/" operator for high-order bytes to avoid 32-bit truncation)
+    ((v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000) & 0xff,
+    (v / 0x100000000) & 0xff,
+    (v >> 24) & 0xff,
+    (v >> 16) & 0xff,
+    (v >> 8) & 0xff,
+    v & 0xff,
+  ];
 }
 
 function stringToBytes(str) {

From 1d95f011169930e85fff4e3ae17062e1fb6f2b6c Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Tue, 2 Jun 2020 10:04:25 -0700
Subject: [PATCH 02/17] chore: comment tweak

---
 src/v35.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/v35.js b/src/v35.js
index ce43e234..faeb3357 100644
--- a/src/v35.js
+++ b/src/v35.js
@@ -27,7 +27,7 @@ function uuidToBytes(uuid) {
     v & 0xff,
 
     // Parse ........-....-....-....-############
-    // (This uses "/" operator for high-order bytes to avoid 32-bit truncation)
+    // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes)
     ((v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000) & 0xff,
     (v / 0x100000000) & 0xff,
     (v >> 24) & 0xff,

From 98b74e82fbb40609a375083289817e962327ec71 Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Tue, 2 Jun 2020 10:07:28 -0700
Subject: [PATCH 03/17] chore: bump bundlewatch sizes

---
 bundlewatch.config.json | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/bundlewatch.config.json b/bundlewatch.config.json
index 4a3fb794..9d3f2c91 100644
--- a/bundlewatch.config.json
+++ b/bundlewatch.config.json
@@ -1,13 +1,13 @@
 {
   "files": [
     { "path": "./examples/browser-rollup/dist/v1-size.js", "maxSize": "0.8 kB" },
-    { "path": "./examples/browser-rollup/dist/v3-size.js", "maxSize": "1.8 kB" },
+    { "path": "./examples/browser-rollup/dist/v3-size.js", "maxSize": "1.9 kB" },
     { "path": "./examples/browser-rollup/dist/v4-size.js", "maxSize": "0.5 kB" },
-    { "path": "./examples/browser-rollup/dist/v5-size.js", "maxSize": "1.2 kB" },
+    { "path": "./examples/browser-rollup/dist/v5-size.js", "maxSize": "1.3 kB" },
 
     { "path": "./examples/browser-webpack/dist/v1-size.js", "maxSize": "1.3 kB" },
-    { "path": "./examples/browser-webpack/dist/v3-size.js", "maxSize": "2.2 kB" },
+    { "path": "./examples/browser-webpack/dist/v3-size.js", "maxSize": "2.4 kB" },
     { "path": "./examples/browser-webpack/dist/v4-size.js", "maxSize": "0.9 kB" },
-    { "path": "./examples/browser-webpack/dist/v5-size.js", "maxSize": "1.6 kB" }
+    { "path": "./examples/browser-webpack/dist/v5-size.js", "maxSize": "1.7 kB" }
   ]
 }

From b85e64b43ee11ba261662b5aa7e01c181f86ec12 Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Thu, 11 Jun 2020 09:09:56 -0700
Subject: [PATCH 04/17] fix: uuidToBytes test

---
 package-lock.json             |  9 +++++++
 package.json                  |  1 +
 src/uuidToBytes.js            | 39 +++++++++++++++++++++++++++++
 src/v35.js                    | 38 +----------------------------
 test/unit/uuidToBytes.test.js | 46 +++++++++++++++++++++++++++++++++++
 5 files changed, 96 insertions(+), 37 deletions(-)
 create mode 100644 src/uuidToBytes.js
 create mode 100644 test/unit/uuidToBytes.test.js

diff --git a/package-lock.json b/package-lock.json
index 0debcb87..0896f995 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12437,6 +12437,15 @@
       "integrity": "sha1-Q2CxfGETatOAeDl/8RQW4Ybc+7g=",
       "dev": true
     },
+    "random-seed": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/random-seed/-/random-seed-0.3.0.tgz",
+      "integrity": "sha1-2UXy4fOPSejViRNDG4v2u5N1Vs0=",
+      "dev": true,
+      "requires": {
+        "json-stringify-safe": "^5.0.1"
+      }
+    },
     "range-parser": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.1.tgz",
diff --git a/package.json b/package.json
index 6dcccba7..cb150307 100644
--- a/package.json
+++ b/package.json
@@ -69,6 +69,7 @@
     "lint-staged": "10.1.3",
     "npm-run-all": "4.1.5",
     "prettier": "2.0.4",
+    "random-seed": "0.3.0",
     "rollup": "2.6.1",
     "rollup-plugin-terser": "5.3.0",
     "runmd": "1.3.2",
diff --git a/src/uuidToBytes.js b/src/uuidToBytes.js
new file mode 100644
index 00000000..ba9a4f90
--- /dev/null
+++ b/src/uuidToBytes.js
@@ -0,0 +1,39 @@
+import validate from './validate.js';
+
+function uuidToBytes(uuid) {
+  if (!validate(uuid)) {
+    throw TypeError('Invalid UUID');
+  }
+
+  let v;
+  return [
+    // Parse ########-....-....-....-............
+    (v = parseInt(uuid.slice(0, 8), 16)) >>> 24,
+    (v >>> 16) & 0xff,
+    (v >>> 8) & 0xff,
+    v & 0xff,
+
+    // Parse ........-####-....-....-............
+    (v = parseInt(uuid.slice(9, 13), 16)) >>> 8,
+    v & 0xff,
+
+    // Parse ........-....-####-....-............
+    (v = parseInt(uuid.slice(14, 18), 16)) >>> 8,
+    v & 0xff,
+
+    // Parse ........-....-....-####-............
+    (v = parseInt(uuid.slice(19, 23), 16)) >>> 8,
+    v & 0xff,
+
+    // Parse ........-....-....-....-############
+    // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes)
+    ((v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000) & 0xff,
+    (v / 0x100000000) & 0xff,
+    (v >>> 24) & 0xff,
+    (v >>> 16) & 0xff,
+    (v >>> 8) & 0xff,
+    v & 0xff,
+  ];
+}
+
+export default uuidToBytes;
diff --git a/src/v35.js b/src/v35.js
index faeb3357..1b6d1070 100644
--- a/src/v35.js
+++ b/src/v35.js
@@ -1,41 +1,5 @@
 import bytesToUuid from './bytesToUuid.js';
-import validate from './validate.js';
-
-function uuidToBytes(uuid) {
-  if (!validate(uuid)) {
-    return [];
-  }
-
-  let v;
-  return [
-    // Parse ########-....-....-....-............
-    (v = parseInt(uuid.slice(0, 8), 16)) >> 24,
-    (v >> 16) & 0xff,
-    (v >> 8) & 0xff,
-    v & 0xff,
-
-    // Parse ........-####-....-....-............
-    (v = parseInt(uuid.slice(9, 13), 16)) >> 8,
-    v & 0xff,
-
-    // Parse ........-....-####-....-............
-    (v = parseInt(uuid.slice(14, 18), 16)) >> 8,
-    v & 0xff,
-
-    // Parse ........-....-....-####-............
-    (v = parseInt(uuid.slice(19, 23), 16)) >> 8,
-    v & 0xff,
-
-    // Parse ........-....-....-....-############
-    // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes)
-    ((v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000) & 0xff,
-    (v / 0x100000000) & 0xff,
-    (v >> 24) & 0xff,
-    (v >> 16) & 0xff,
-    (v >> 8) & 0xff,
-    v & 0xff,
-  ];
-}
+import uuidToBytes from './uuidToBytes.js';
 
 function stringToBytes(str) {
   str = unescape(encodeURIComponent(str)); // UTF8 escape
diff --git a/test/unit/uuidToBytes.test.js b/test/unit/uuidToBytes.test.js
new file mode 100644
index 00000000..ec5aaba4
--- /dev/null
+++ b/test/unit/uuidToBytes.test.js
@@ -0,0 +1,46 @@
+import assert from 'assert';
+import uuidv4 from '../../src/v4.js';
+import uuidToBytes from '../../src/uuidToBytes.js';
+import bytesToUuid from '../../src/bytesToUuid.js';
+import gen from 'random-seed';
+
+// Use deterministic PRNG for reproducable tests
+const rand = gen.create('He who wonders discovers that this in itself is wonder.');
+function rng(bytes = []) {
+  for (let i = 0; i < 16; i++) {
+    bytes[i] = rand(256);
+  }
+  return bytes;
+}
+
+describe('uuidToBytes', () => {
+  test('string->bytes->string symmetry', () => {
+    // Verify string->bytes->string symmetry for a selection of uuids
+    for (let i = 0; i < 1000; i++) {
+      const uuid = uuidv4({ rng });
+      assert.equal(bytesToUuid(uuidToBytes(uuid)), uuid);
+    }
+  });
+
+  test('Ignore case', () => {
+    // Verify upper/lower case neutrality
+    assert.deepStrictEqual(
+      uuidToBytes('0f5abcd1-c194-47f3-905b-2df7263a084b'),
+      uuidToBytes('0f5abcd1-c194-47f3-905b-2df7263a084b'.toUpperCase()),
+    );
+  });
+
+  test('Null UUID', () => {
+    // Verify null Uuid
+    assert.deepStrictEqual(
+      uuidToBytes('00000000-0000-0000-0000-000000000000'),
+      new Array(16).fill(0),
+    );
+  });
+
+  test('Validates', () => {
+    assert.throws(() => uuidToBytes());
+    assert.throws(() => uuidToBytes('invalid uuid'));
+    assert.throws(() => uuidToBytes('zyxwvuts-rqpo-nmlk-jihg-fedcba000000'));
+  });
+});

From 2b95ea2d723cfae13b0ce734d67b3dd62de8adc2 Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Thu, 11 Jun 2020 16:00:20 -0700
Subject: [PATCH 05/17] feat: export uuidToBytes, uuidToBytes benchmark

---
 examples/benchmark/benchmark.html |   1 +
 examples/benchmark/benchmark.js   | 103 +++++++++++++++++++-----------
 rollup.config.js                  |   1 +
 src/index.js                      |   1 +
 4 files changed, 68 insertions(+), 38 deletions(-)

diff --git a/examples/benchmark/benchmark.html b/examples/benchmark/benchmark.html
index 54be63f8..97056ce1 100644
--- a/examples/benchmark/benchmark.html
+++ b/examples/benchmark/benchmark.html
@@ -5,6 +5,7 @@
 <script src="./node_modules/uuid/dist/umd/uuidv3.min.js"></script>
 <script src="./node_modules/uuid/dist/umd/uuidv4.min.js"></script>
 <script src="./node_modules/uuid/dist/umd/uuidv5.min.js"></script>
+<script src="./node_modules/uuid/dist/umd/uuidToBytes.min.js"></script>
 <script src="./node_modules/lodash/lodash.js"></script>
 <script src="./node_modules/benchmark/benchmark.js"></script>
 <script src="./benchmark.js"></script>
diff --git a/examples/benchmark/benchmark.js b/examples/benchmark/benchmark.js
index dc3ff19f..3b397cdf 100644
--- a/examples/benchmark/benchmark.js
+++ b/examples/benchmark/benchmark.js
@@ -5,46 +5,73 @@ const uuidv1 = (typeof window !== 'undefined' && window.uuidv1) || require('uuid
 const uuidv4 = (typeof window !== 'undefined' && window.uuidv4) || require('uuid').v4;
 const uuidv3 = (typeof window !== 'undefined' && window.uuidv3) || require('uuid').v3;
 const uuidv5 = (typeof window !== 'undefined' && window.uuidv5) || require('uuid').v5;
+const uuidToBytes =
+  (typeof window !== 'undefined' && window.uuidToBytes) || require('uuid').uuidToBytes;
 
 console.log('Starting. Tests take ~1 minute to run ...');
 
-const array = new Array(16);
+function testUuidToBytes() {
+  const suite = new Benchmark.Suite({
+    onError(event) {
+      console.error(event.target.error);
+    },
+  });
 
-const suite = new Benchmark.Suite({
-  onError(event) {
-    console.error(event.target.error);
-  },
-});
+  suite
+    .add('uuidToBytes()', function () {
+      uuidToBytes('0f5abcd1-c194-47f3-905b-2df7263a084b');
+    })
+    .on('cycle', function (event) {
+      console.log(event.target.toString());
+    })
+    .on('complete', function () {
+      console.log('---\n');
+    })
+    .run();
+}
 
-suite
-  .add('uuidv1()', function () {
-    uuidv1();
-  })
-  .add('uuidv1() fill existing array', function () {
-    try {
-      uuidv1(null, array, 0);
-    } catch (err) {
-      // The spec (https://tools.ietf.org/html/rfc4122#section-4.2.1.2) defines that only 10M/s v1
-      // UUIDs can be generated on a single node. This library throws an error if we hit that limit
-      // (which can happen on modern hardware and modern Node.js versions).
-    }
-  })
-  .add('uuidv4()', function () {
-    uuidv4();
-  })
-  .add('uuidv4() fill existing array', function () {
-    uuidv4(null, array, 0);
-  })
-  .add('uuidv3()', function () {
-    uuidv3('hello.example.com', uuidv3.DNS);
-  })
-  .add('uuidv5()', function () {
-    uuidv5('hello.example.com', uuidv5.DNS);
-  })
-  .on('cycle', function (event) {
-    console.log(event.target.toString());
-  })
-  .on('complete', function () {
-    console.log('Fastest is ' + this.filter('fastest').map('name'));
-  })
-  .run();
+function testGeneration() {
+  const array = new Array(16);
+
+  const suite = new Benchmark.Suite({
+    onError(event) {
+      console.error(event.target.error);
+    },
+  });
+
+  suite
+    .add('uuidv1()', function () {
+      uuidv1();
+    })
+    .add('uuidv1() fill existing array', function () {
+      try {
+        uuidv1(null, array, 0);
+      } catch (err) {
+        // The spec (https://tools.ietf.org/html/rfc4122#section-4.2.1.2) defines that only 10M/s v1
+        // UUIDs can be generated on a single node. This library throws an error if we hit that limit
+        // (which can happen on modern hardware and modern Node.js versions).
+      }
+    })
+    .add('uuidv4()', function () {
+      uuidv4();
+    })
+    .add('uuidv4() fill existing array', function () {
+      uuidv4(null, array, 0);
+    })
+    .add('uuidv3()', function () {
+      uuidv3('hello.example.com', uuidv3.DNS);
+    })
+    .add('uuidv5()', function () {
+      uuidv5('hello.example.com', uuidv5.DNS);
+    })
+    .on('cycle', function (event) {
+      console.log(event.target.toString());
+    })
+    .on('complete', function () {
+      console.log('Fastest is ' + this.filter('fastest').map('name'));
+    })
+    .run();
+}
+
+testUuidToBytes();
+testGeneration();
diff --git a/rollup.config.js b/rollup.config.js
index 34544dfd..23e26a04 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -20,4 +20,5 @@ export default [
   chunk('v3', 'uuidv3'),
   chunk('v4', 'uuidv4'),
   chunk('v5', 'uuidv5'),
+  chunk('uuidToBytes', 'uuidToBytes'),
 ];
diff --git a/src/index.js b/src/index.js
index 7702f92a..8c19f29d 100644
--- a/src/index.js
+++ b/src/index.js
@@ -5,3 +5,4 @@ export { default as v5 } from './v5.js';
 export { default as REGEX } from './regex.js';
 export { default as version } from './version.js';
 export { default as validate } from './validate.js';
+export { default as uuidToBytes } from './uuidToBytes.js';

From 5bc6a95ba80f38eecf2d248c7ce1ff56bab7b681 Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Mon, 22 Jun 2020 12:07:31 -0700
Subject: [PATCH 06/17] chore: review comments

---
 test/unit/uuidToBytes.test.js | 31 +++++++++++++++++++++++++------
 1 file changed, 25 insertions(+), 6 deletions(-)

diff --git a/test/unit/uuidToBytes.test.js b/test/unit/uuidToBytes.test.js
index ec5aaba4..a7f1bc1d 100644
--- a/test/unit/uuidToBytes.test.js
+++ b/test/unit/uuidToBytes.test.js
@@ -14,15 +14,35 @@ function rng(bytes = []) {
 }
 
 describe('uuidToBytes', () => {
-  test('string->bytes->string symmetry', () => {
-    // Verify string->bytes->string symmetry for a selection of uuids
+  test('String -> bytes parsing', () => {
+    assert.deepStrictEqual(uuidToBytes('0f5abcd1-c194-47f3-905b-2df7263a084b'), [
+      0x0f,
+      0x5a,
+      0xbc,
+      0xd1,
+      0xc1,
+      0x94,
+      0x47,
+      0xf3,
+      0x90,
+      0x5b,
+      0x2d,
+      0xf7,
+      0x26,
+      0x3a,
+      0x08,
+      0x4b,
+    ]);
+  });
+
+  test('String -> bytes -> string symmetry for assorted uuids', () => {
     for (let i = 0; i < 1000; i++) {
       const uuid = uuidv4({ rng });
       assert.equal(bytesToUuid(uuidToBytes(uuid)), uuid);
     }
   });
 
-  test('Ignore case', () => {
+  test('Case neutrality', () => {
     // Verify upper/lower case neutrality
     assert.deepStrictEqual(
       uuidToBytes('0f5abcd1-c194-47f3-905b-2df7263a084b'),
@@ -30,15 +50,14 @@ describe('uuidToBytes', () => {
     );
   });
 
-  test('Null UUID', () => {
-    // Verify null Uuid
+  test('Null UUID case', () => {
     assert.deepStrictEqual(
       uuidToBytes('00000000-0000-0000-0000-000000000000'),
       new Array(16).fill(0),
     );
   });
 
-  test('Validates', () => {
+  test('UUID validation', () => {
     assert.throws(() => uuidToBytes());
     assert.throws(() => uuidToBytes('invalid uuid'));
     assert.throws(() => uuidToBytes('zyxwvuts-rqpo-nmlk-jihg-fedcba000000'));

From 1ec9f732d877fa50ee90f9a05da84793784fac97 Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Tue, 23 Jun 2020 11:09:10 -0700
Subject: [PATCH 07/17] feat: export validate, parse, stringify methods

---
 examples/benchmark/benchmark.html |  2 +-
 examples/benchmark/benchmark.js   |  7 ++--
 rollup.config.js                  |  5 ++-
 src/bytesToUuid.js                | 40 ------------------
 src/index.js                      |  2 +-
 src/{uuidToBytes.js => parse.js}  |  8 ++--
 src/stringify.js                  | 52 +++++++++++++++++++++++
 src/v1.js                         |  4 +-
 src/v35.js                        | 24 ++++++-----
 src/v4.js                         |  4 +-
 test/unit/parse.test.js           | 68 +++++++++++++++++++++++++++++++
 test/unit/uuidToBytes.test.js     | 65 -----------------------------
 12 files changed, 151 insertions(+), 130 deletions(-)
 delete mode 100644 src/bytesToUuid.js
 rename src/{uuidToBytes.js => parse.js} (92%)
 create mode 100644 src/stringify.js
 create mode 100644 test/unit/parse.test.js
 delete mode 100644 test/unit/uuidToBytes.test.js

diff --git a/examples/benchmark/benchmark.html b/examples/benchmark/benchmark.html
index 97056ce1..8360b2e3 100644
--- a/examples/benchmark/benchmark.html
+++ b/examples/benchmark/benchmark.html
@@ -5,7 +5,7 @@
 <script src="./node_modules/uuid/dist/umd/uuidv3.min.js"></script>
 <script src="./node_modules/uuid/dist/umd/uuidv4.min.js"></script>
 <script src="./node_modules/uuid/dist/umd/uuidv5.min.js"></script>
-<script src="./node_modules/uuid/dist/umd/uuidToBytes.min.js"></script>
+<script src="./node_modules/uuid/dist/umd/uuidParse.min.js"></script>
 <script src="./node_modules/lodash/lodash.js"></script>
 <script src="./node_modules/benchmark/benchmark.js"></script>
 <script src="./benchmark.js"></script>
diff --git a/examples/benchmark/benchmark.js b/examples/benchmark/benchmark.js
index 3b397cdf..78c9cf5f 100644
--- a/examples/benchmark/benchmark.js
+++ b/examples/benchmark/benchmark.js
@@ -5,8 +5,7 @@ const uuidv1 = (typeof window !== 'undefined' && window.uuidv1) || require('uuid
 const uuidv4 = (typeof window !== 'undefined' && window.uuidv4) || require('uuid').v4;
 const uuidv3 = (typeof window !== 'undefined' && window.uuidv3) || require('uuid').v3;
 const uuidv5 = (typeof window !== 'undefined' && window.uuidv5) || require('uuid').v5;
-const uuidToBytes =
-  (typeof window !== 'undefined' && window.uuidToBytes) || require('uuid').uuidToBytes;
+const uuidParse = (typeof window !== 'undefined' && window.uuidParse) || require('uuid').parse;
 
 console.log('Starting. Tests take ~1 minute to run ...');
 
@@ -18,8 +17,8 @@ function testUuidToBytes() {
   });
 
   suite
-    .add('uuidToBytes()', function () {
-      uuidToBytes('0f5abcd1-c194-47f3-905b-2df7263a084b');
+    .add('uuidParse()', function () {
+      uuidParse('0f5abcd1-c194-47f3-905b-2df7263a084b');
     })
     .on('cycle', function (event) {
       console.log(event.target.toString());
diff --git a/rollup.config.js b/rollup.config.js
index 23e26a04..13970df1 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -20,5 +20,8 @@ export default [
   chunk('v3', 'uuidv3'),
   chunk('v4', 'uuidv4'),
   chunk('v5', 'uuidv5'),
-  chunk('uuidToBytes', 'uuidToBytes'),
+
+  chunk('validate', 'uuidValidate'),
+  chunk('parse', 'uuidParse'),
+  chunk('stringify', 'uuidStringify'),
 ];
diff --git a/src/bytesToUuid.js b/src/bytesToUuid.js
deleted file mode 100644
index 0f57c69f..00000000
--- a/src/bytesToUuid.js
+++ /dev/null
@@ -1,40 +0,0 @@
-/**
- * Convert array of 16 byte values to UUID string format of the form:
- * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
- */
-const byteToHex = [];
-
-for (let i = 0; i < 256; ++i) {
-  byteToHex.push((i + 0x100).toString(16).substr(1));
-}
-
-function bytesToUuid(buf, offset_) {
-  const offset = offset_ || 0;
-
-  // Note: Be careful editing this code!  It's been tuned for performance
-  // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434
-  return (
-    byteToHex[buf[offset + 0]] +
-    byteToHex[buf[offset + 1]] +
-    byteToHex[buf[offset + 2]] +
-    byteToHex[buf[offset + 3]] +
-    '-' +
-    byteToHex[buf[offset + 4]] +
-    byteToHex[buf[offset + 5]] +
-    '-' +
-    byteToHex[buf[offset + 6]] +
-    byteToHex[buf[offset + 7]] +
-    '-' +
-    byteToHex[buf[offset + 8]] +
-    byteToHex[buf[offset + 9]] +
-    '-' +
-    byteToHex[buf[offset + 10]] +
-    byteToHex[buf[offset + 11]] +
-    byteToHex[buf[offset + 12]] +
-    byteToHex[buf[offset + 13]] +
-    byteToHex[buf[offset + 14]] +
-    byteToHex[buf[offset + 15]]
-  ).toLowerCase();
-}
-
-export default bytesToUuid;
diff --git a/src/index.js b/src/index.js
index 8c19f29d..fd56289c 100644
--- a/src/index.js
+++ b/src/index.js
@@ -5,4 +5,4 @@ export { default as v5 } from './v5.js';
 export { default as REGEX } from './regex.js';
 export { default as version } from './version.js';
 export { default as validate } from './validate.js';
-export { default as uuidToBytes } from './uuidToBytes.js';
+export { default as parse } from './parse.js';
diff --git a/src/uuidToBytes.js b/src/parse.js
similarity index 92%
rename from src/uuidToBytes.js
rename to src/parse.js
index ba9a4f90..ab421447 100644
--- a/src/uuidToBytes.js
+++ b/src/parse.js
@@ -1,12 +1,12 @@
 import validate from './validate.js';
 
-function uuidToBytes(uuid) {
+function parse(uuid) {
   if (!validate(uuid)) {
     throw TypeError('Invalid UUID');
   }
 
   let v;
-  return [
+  return Uint8Array.of(
     // Parse ########-....-....-....-............
     (v = parseInt(uuid.slice(0, 8), 16)) >>> 24,
     (v >>> 16) & 0xff,
@@ -33,7 +33,7 @@ function uuidToBytes(uuid) {
     (v >>> 16) & 0xff,
     (v >>> 8) & 0xff,
     v & 0xff,
-  ];
+  );
 }
 
-export default uuidToBytes;
+export default parse;
diff --git a/src/stringify.js b/src/stringify.js
new file mode 100644
index 00000000..a5c998f6
--- /dev/null
+++ b/src/stringify.js
@@ -0,0 +1,52 @@
+/**
+ * Convert array of 16 byte values to UUID string format of the form:
+ * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
+ */
+const byteToHex = [];
+
+for (let i = 0; i < 256; ++i) {
+  byteToHex.push(i.toString(16).padStart(2, '0'));
+}
+
+function stringify(arr, offset = 0) {
+  // Note: Be careful editing this code!  It's been tuned for performance
+  // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434
+  const uuid = (
+    byteToHex[arr[offset + 0]] +
+    byteToHex[arr[offset + 1]] +
+    byteToHex[arr[offset + 2]] +
+    byteToHex[arr[offset + 3]] +
+    '-' +
+    byteToHex[arr[offset + 4]] +
+    byteToHex[arr[offset + 5]] +
+    '-' +
+    byteToHex[arr[offset + 6]] +
+    byteToHex[arr[offset + 7]] +
+    '-' +
+    byteToHex[arr[offset + 8]] +
+    byteToHex[arr[offset + 9]] +
+    '-' +
+    byteToHex[arr[offset + 10]] +
+    byteToHex[arr[offset + 11]] +
+    byteToHex[arr[offset + 12]] +
+    byteToHex[arr[offset + 13]] +
+    byteToHex[arr[offset + 14]] +
+    byteToHex[arr[offset + 15]]
+  ).toLowerCase();
+
+  // Sanity check for valid UUID.  This works because if any of
+  // the input array values don't map to a defined hex octet, the string length
+  // will get blown out (e.g. "74af23d8-85undefined2c44-...")
+  //
+  // This is a somewhat crude check, but avoids having to check each value
+  // individually.
+  if (uuid.length !== 36) {
+    throw new TypeError(
+      'Invalid result UUID.  Please insure input is array-like, and contains 16 integer values 0-255',
+    );
+  }
+
+  return uuid;
+}
+
+export default stringify;
diff --git a/src/v1.js b/src/v1.js
index dbf4f5ca..0643675e 100644
--- a/src/v1.js
+++ b/src/v1.js
@@ -1,5 +1,5 @@
 import rng from './rng.js';
-import bytesToUuid from './bytesToUuid.js';
+import stringify from './stringify.js';
 
 // **`v1()` - Generate time-based UUID**
 //
@@ -109,7 +109,7 @@ function v1(options, buf, offset) {
     b[i + n] = node[n];
   }
 
-  return buf || bytesToUuid(b);
+  return buf || stringify(b);
 }
 
 export default v1;
diff --git a/src/v35.js b/src/v35.js
index 1b6d1070..a2d0b860 100644
--- a/src/v35.js
+++ b/src/v35.js
@@ -1,5 +1,5 @@
-import bytesToUuid from './bytesToUuid.js';
-import uuidToBytes from './uuidToBytes.js';
+import stringify from './stringify.js';
+import parse from './parse.js';
 
 function stringToBytes(str) {
   str = unescape(encodeURIComponent(str)); // UTF8 escape
@@ -23,19 +23,23 @@ export default function (name, version, hashfunc) {
     }
 
     if (typeof namespace === 'string') {
-      namespace = uuidToBytes(namespace);
+      namespace = parse(namespace);
     }
 
-    if (!Array.isArray(value)) {
-      throw TypeError('value must be an array of bytes');
+    if (!value[Symbol.iterator]) {
+      throw TypeError('Value must be iterable');
     }
 
-    if (!Array.isArray(namespace) || namespace.length !== 16) {
-      throw TypeError('namespace must be uuid string or an Array of 16 byte values');
+    if (!namespace[Symbol.iterator] || namespace.length !== 16) {
+      throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)');
     }
 
-    // Per 4.3
-    const bytes = hashfunc(namespace.concat(value));
+    // Concatenate namespace and value bytes, Per 4.3
+    let bytes = new Uint8Array(namespace.length + value.length);
+    bytes.set(namespace);
+    bytes.set(value, namespace.length);
+    bytes = hashfunc(bytes);
+
     bytes[6] = (bytes[6] & 0x0f) | version;
     bytes[8] = (bytes[8] & 0x3f) | 0x80;
 
@@ -49,7 +53,7 @@ export default function (name, version, hashfunc) {
       return buf;
     }
 
-    return bytesToUuid(bytes);
+    return stringify(bytes);
   }
 
   // Function#name is not settable on some platforms (#270)
diff --git a/src/v4.js b/src/v4.js
index 16765828..520613a4 100644
--- a/src/v4.js
+++ b/src/v4.js
@@ -1,5 +1,5 @@
 import rng from './rng.js';
-import bytesToUuid from './bytesToUuid.js';
+import stringify from './stringify.js';
 
 function v4(options, buf, offset) {
   options = options || {};
@@ -21,7 +21,7 @@ function v4(options, buf, offset) {
     return buf;
   }
 
-  return bytesToUuid(rnds);
+  return stringify(rnds);
 }
 
 export default v4;
diff --git a/test/unit/parse.test.js b/test/unit/parse.test.js
new file mode 100644
index 00000000..7137d953
--- /dev/null
+++ b/test/unit/parse.test.js
@@ -0,0 +1,68 @@
+import assert from 'assert';
+import uuidv4 from '../../src/v4.js';
+import parse from '../../src/parse.js';
+import stringify from '../../src/stringify.js';
+import gen from 'random-seed';
+
+// Use deterministic PRNG for reproducable tests
+const rand = gen.create('He who wonders discovers that this in itself is wonder.');
+function rng(bytes = []) {
+  for (let i = 0; i < 16; i++) {
+    bytes[i] = rand(256);
+  }
+  return bytes;
+}
+
+describe('parse', () => {
+  test('String -> bytes parsing', () => {
+    assert.deepStrictEqual(
+      parse('0f5abcd1-c194-47f3-905b-2df7263a084b'),
+      Uint8Array.from([
+        0x0f,
+        0x5a,
+        0xbc,
+        0xd1,
+        0xc1,
+        0x94,
+        0x47,
+        0xf3,
+        0x90,
+        0x5b,
+        0x2d,
+        0xf7,
+        0x26,
+        0x3a,
+        0x08,
+        0x4b,
+      ]),
+    );
+  });
+
+  test('String -> bytes -> string symmetry for assorted uuids', () => {
+    for (let i = 0; i < 1000; i++) {
+      const uuid = uuidv4({ rng });
+      assert.equal(stringify(parse(uuid)), uuid);
+    }
+  });
+
+  test('Case neutrality', () => {
+    // Verify upper/lower case neutrality
+    assert.deepStrictEqual(
+      parse('0f5abcd1-c194-47f3-905b-2df7263a084b'),
+      parse('0f5abcd1-c194-47f3-905b-2df7263a084b'.toUpperCase()),
+    );
+  });
+
+  test('Null UUID case', () => {
+    assert.deepStrictEqual(
+      parse('00000000-0000-0000-0000-000000000000'),
+      Uint8Array.from(new Array(16).fill(0)),
+    );
+  });
+
+  test('UUID validation', () => {
+    assert.throws(() => parse());
+    assert.throws(() => parse('invalid uuid'));
+    assert.throws(() => parse('zyxwvuts-rqpo-nmlk-jihg-fedcba000000'));
+  });
+});
diff --git a/test/unit/uuidToBytes.test.js b/test/unit/uuidToBytes.test.js
deleted file mode 100644
index a7f1bc1d..00000000
--- a/test/unit/uuidToBytes.test.js
+++ /dev/null
@@ -1,65 +0,0 @@
-import assert from 'assert';
-import uuidv4 from '../../src/v4.js';
-import uuidToBytes from '../../src/uuidToBytes.js';
-import bytesToUuid from '../../src/bytesToUuid.js';
-import gen from 'random-seed';
-
-// Use deterministic PRNG for reproducable tests
-const rand = gen.create('He who wonders discovers that this in itself is wonder.');
-function rng(bytes = []) {
-  for (let i = 0; i < 16; i++) {
-    bytes[i] = rand(256);
-  }
-  return bytes;
-}
-
-describe('uuidToBytes', () => {
-  test('String -> bytes parsing', () => {
-    assert.deepStrictEqual(uuidToBytes('0f5abcd1-c194-47f3-905b-2df7263a084b'), [
-      0x0f,
-      0x5a,
-      0xbc,
-      0xd1,
-      0xc1,
-      0x94,
-      0x47,
-      0xf3,
-      0x90,
-      0x5b,
-      0x2d,
-      0xf7,
-      0x26,
-      0x3a,
-      0x08,
-      0x4b,
-    ]);
-  });
-
-  test('String -> bytes -> string symmetry for assorted uuids', () => {
-    for (let i = 0; i < 1000; i++) {
-      const uuid = uuidv4({ rng });
-      assert.equal(bytesToUuid(uuidToBytes(uuid)), uuid);
-    }
-  });
-
-  test('Case neutrality', () => {
-    // Verify upper/lower case neutrality
-    assert.deepStrictEqual(
-      uuidToBytes('0f5abcd1-c194-47f3-905b-2df7263a084b'),
-      uuidToBytes('0f5abcd1-c194-47f3-905b-2df7263a084b'.toUpperCase()),
-    );
-  });
-
-  test('Null UUID case', () => {
-    assert.deepStrictEqual(
-      uuidToBytes('00000000-0000-0000-0000-000000000000'),
-      new Array(16).fill(0),
-    );
-  });
-
-  test('UUID validation', () => {
-    assert.throws(() => uuidToBytes());
-    assert.throws(() => uuidToBytes('invalid uuid'));
-    assert.throws(() => uuidToBytes('zyxwvuts-rqpo-nmlk-jihg-fedcba000000'));
-  });
-});

From a04e6cd0af79b2146f989814bd8cf76fae180dbf Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Tue, 23 Jun 2020 11:27:40 -0700
Subject: [PATCH 08/17] chore: stringify unit test and benchmark

---
 examples/benchmark/benchmark.js | 28 +++++++++++++--
 src/index.js                    |  1 +
 src/parse.js                    | 58 +++++++++++++++---------------
 test/unit/stringify.test.js     | 64 +++++++++++++++++++++++++++++++++
 4 files changed, 121 insertions(+), 30 deletions(-)
 create mode 100644 test/unit/stringify.test.js

diff --git a/examples/benchmark/benchmark.js b/examples/benchmark/benchmark.js
index 78c9cf5f..df78d3f4 100644
--- a/examples/benchmark/benchmark.js
+++ b/examples/benchmark/benchmark.js
@@ -6,17 +6,41 @@ const uuidv4 = (typeof window !== 'undefined' && window.uuidv4) || require('uuid
 const uuidv3 = (typeof window !== 'undefined' && window.uuidv3) || require('uuid').v3;
 const uuidv5 = (typeof window !== 'undefined' && window.uuidv5) || require('uuid').v5;
 const uuidParse = (typeof window !== 'undefined' && window.uuidParse) || require('uuid').parse;
+const uuidStringify =
+  (typeof window !== 'undefined' && window.uuidStringify) || require('uuid').stringify;
 
 console.log('Starting. Tests take ~1 minute to run ...');
 
-function testUuidToBytes() {
+function testParse() {
   const suite = new Benchmark.Suite({
     onError(event) {
       console.error(event.target.error);
     },
   });
 
+  const BYTES = [
+    0x0f,
+    0x5a,
+    0xbc,
+    0xd1,
+    0xc1,
+    0x94,
+    0x47,
+    0xf3,
+    0x90,
+    0x5b,
+    0x2d,
+    0xf7,
+    0x26,
+    0x3a,
+    0x08,
+    0x4b,
+  ];
+
   suite
+    .add('uuidStringify()', function () {
+      uuidStringify(BYTES);
+    })
     .add('uuidParse()', function () {
       uuidParse('0f5abcd1-c194-47f3-905b-2df7263a084b');
     })
@@ -72,5 +96,5 @@ function testGeneration() {
     .run();
 }
 
-testUuidToBytes();
+testParse();
 testGeneration();
diff --git a/src/index.js b/src/index.js
index fd56289c..9586a544 100644
--- a/src/index.js
+++ b/src/index.js
@@ -5,4 +5,5 @@ export { default as v5 } from './v5.js';
 export { default as REGEX } from './regex.js';
 export { default as version } from './version.js';
 export { default as validate } from './validate.js';
+export { default as stringify } from './stringify.js';
 export { default as parse } from './parse.js';
diff --git a/src/parse.js b/src/parse.js
index ab421447..85edd846 100644
--- a/src/parse.js
+++ b/src/parse.js
@@ -6,34 +6,36 @@ function parse(uuid) {
   }
 
   let v;
-  return Uint8Array.of(
-    // Parse ########-....-....-....-............
-    (v = parseInt(uuid.slice(0, 8), 16)) >>> 24,
-    (v >>> 16) & 0xff,
-    (v >>> 8) & 0xff,
-    v & 0xff,
-
-    // Parse ........-####-....-....-............
-    (v = parseInt(uuid.slice(9, 13), 16)) >>> 8,
-    v & 0xff,
-
-    // Parse ........-....-####-....-............
-    (v = parseInt(uuid.slice(14, 18), 16)) >>> 8,
-    v & 0xff,
-
-    // Parse ........-....-....-####-............
-    (v = parseInt(uuid.slice(19, 23), 16)) >>> 8,
-    v & 0xff,
-
-    // Parse ........-....-....-....-############
-    // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes)
-    ((v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000) & 0xff,
-    (v / 0x100000000) & 0xff,
-    (v >>> 24) & 0xff,
-    (v >>> 16) & 0xff,
-    (v >>> 8) & 0xff,
-    v & 0xff,
-  );
+  const arr = new Uint8Array(16);
+
+  // Parse ########-....-....-....-............
+  arr[0] = (v = parseInt(uuid.slice(0, 8), 16)) >>> 24;
+  arr[1] = (v >>> 16) & 0xff;
+  arr[2] = (v >>> 8) & 0xff;
+  arr[3] = v & 0xff;
+
+  // Parse ........-####-....-....-............
+  arr[4] = (v = parseInt(uuid.slice(9, 13), 16)) >>> 8;
+  arr[5] = v & 0xff;
+
+  // Parse ........-....-####-....-............
+  arr[6] = (v = parseInt(uuid.slice(14, 18), 16)) >>> 8;
+  arr[7] = v & 0xff;
+
+  // Parse ........-....-....-####-............
+  arr[8] = (v = parseInt(uuid.slice(19, 23), 16)) >>> 8;
+  arr[9] = v & 0xff;
+
+  // Parse ........-....-....-....-############
+  // (Use "/" to avoid 32-bit truncation when bit-shifting high-order bytes)
+  arr[10] = ((v = parseInt(uuid.slice(24, 36), 16)) / 0x10000000000) & 0xff;
+  arr[11] = (v / 0x100000000) & 0xff;
+  arr[12] = (v >>> 24) & 0xff;
+  arr[13] = (v >>> 16) & 0xff;
+  arr[14] = (v >>> 8) & 0xff;
+  arr[15] = v & 0xff;
+
+  return arr;
 }
 
 export default parse;
diff --git a/test/unit/stringify.test.js b/test/unit/stringify.test.js
new file mode 100644
index 00000000..f022e8e5
--- /dev/null
+++ b/test/unit/stringify.test.js
@@ -0,0 +1,64 @@
+import assert from 'assert';
+import stringify from '../../src/stringify.js';
+
+const BYTES = [
+  0x0f,
+  0x5a,
+  0xbc,
+  0xd1,
+  0xc1,
+  0x94,
+  0x47,
+  0xf3,
+  0x90,
+  0x5b,
+  0x2d,
+  0xf7,
+  0x26,
+  0x3a,
+  0x08,
+  0x4b,
+];
+
+describe('stringify', () => {
+  test('Stringify Array', () => {
+    assert.deepStrictEqual(stringify(BYTES), '0f5abcd1-c194-47f3-905b-2df7263a084b');
+  });
+
+  test('Stringify TypedArray', () => {
+    assert.deepStrictEqual(
+      stringify(Uint8Array.from(BYTES)),
+      '0f5abcd1-c194-47f3-905b-2df7263a084b',
+    );
+    assert.deepStrictEqual(
+      stringify(Int32Array.from(BYTES)),
+      '0f5abcd1-c194-47f3-905b-2df7263a084b',
+    );
+  });
+
+  test('Stringify w/ offset', () => {
+    assert.deepStrictEqual(
+      stringify([0, 0, 0, ...BYTES], 3),
+      '0f5abcd1-c194-47f3-905b-2df7263a084b',
+    );
+  });
+
+  test('Throws on not enough values', () => {
+    const bytes = [...BYTES];
+    bytes.length = 15;
+    assert.throws(() => stringify(bytes));
+  });
+
+  test('Throws on undefined value', () => {
+    const bytes = [...BYTES];
+    delete bytes[3];
+    bytes.length = 15;
+    assert.throws(() => stringify(bytes));
+  });
+
+  test('Throws on invalid value', () => {
+    const bytes = [...BYTES];
+    bytes[3] = 256;
+    assert.throws(() => stringify(bytes));
+  });
+});

From 2629e4eec522ef613ccc4be9973cab2437de7912 Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Tue, 23 Jun 2020 11:47:01 -0700
Subject: [PATCH 09/17] fix: stringify test in browser

---
 examples/benchmark/benchmark.html | 1 +
 src/sha1-browser.js               | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/examples/benchmark/benchmark.html b/examples/benchmark/benchmark.html
index 8360b2e3..2f3bf78f 100644
--- a/examples/benchmark/benchmark.html
+++ b/examples/benchmark/benchmark.html
@@ -6,6 +6,7 @@
 <script src="./node_modules/uuid/dist/umd/uuidv4.min.js"></script>
 <script src="./node_modules/uuid/dist/umd/uuidv5.min.js"></script>
 <script src="./node_modules/uuid/dist/umd/uuidParse.min.js"></script>
+<script src="./node_modules/uuid/dist/umd/uuidStringify.min.js"></script>
 <script src="./node_modules/lodash/lodash.js"></script>
 <script src="./node_modules/benchmark/benchmark.js"></script>
 <script src="./benchmark.js"></script>
diff --git a/src/sha1-browser.js b/src/sha1-browser.js
index 2bfa2cb0..d2362ca0 100644
--- a/src/sha1-browser.js
+++ b/src/sha1-browser.js
@@ -29,6 +29,9 @@ function sha1(bytes) {
     for (let i = 0; i < msg.length; ++i) {
       bytes.push(msg.charCodeAt(i));
     }
+  } else if (!Array.isArray(bytes)) {
+    // Convert Array-like to Array
+    bytes = Array.from(bytes);
   }
 
   bytes.push(0x80);

From 0f5cb9c02ffdf387acab02253ed73a9da848ddb3 Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Tue, 23 Jun 2020 11:54:57 -0700
Subject: [PATCH 10/17] feat: add uuidVersion to rollup exports

---
 rollup.config.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/rollup.config.js b/rollup.config.js
index 13970df1..920d599f 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -21,6 +21,7 @@ export default [
   chunk('v4', 'uuidv4'),
   chunk('v5', 'uuidv5'),
 
+  chunk('version', 'uuidVersion'),
   chunk('validate', 'uuidValidate'),
   chunk('parse', 'uuidParse'),
   chunk('stringify', 'uuidStringify'),

From dcb709f3331a089d18aac342ddffb472b6b91310 Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Tue, 23 Jun 2020 12:10:28 -0700
Subject: [PATCH 11/17] chore: bump bundlewatch limits

---
 bundlewatch.config.json | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/bundlewatch.config.json b/bundlewatch.config.json
index 9d3f2c91..f3d7de16 100644
--- a/bundlewatch.config.json
+++ b/bundlewatch.config.json
@@ -1,13 +1,13 @@
 {
   "files": [
-    { "path": "./examples/browser-rollup/dist/v1-size.js", "maxSize": "0.8 kB" },
-    { "path": "./examples/browser-rollup/dist/v3-size.js", "maxSize": "1.9 kB" },
-    { "path": "./examples/browser-rollup/dist/v4-size.js", "maxSize": "0.5 kB" },
-    { "path": "./examples/browser-rollup/dist/v5-size.js", "maxSize": "1.3 kB" },
+    { "path": "./examples/browser-rollup/dist/v1-size.js", "maxSize": "0.9 kB" },
+    { "path": "./examples/browser-rollup/dist/v3-size.js", "maxSize": "2.1 kB" },
+    { "path": "./examples/browser-rollup/dist/v4-size.js", "maxSize": "0.6 kB" },
+    { "path": "./examples/browser-rollup/dist/v5-size.js", "maxSize": "1.5 kB" },
 
     { "path": "./examples/browser-webpack/dist/v1-size.js", "maxSize": "1.3 kB" },
-    { "path": "./examples/browser-webpack/dist/v3-size.js", "maxSize": "2.4 kB" },
-    { "path": "./examples/browser-webpack/dist/v4-size.js", "maxSize": "0.9 kB" },
-    { "path": "./examples/browser-webpack/dist/v5-size.js", "maxSize": "1.7 kB" }
+    { "path": "./examples/browser-webpack/dist/v3-size.js", "maxSize": "2.5 kB" },
+    { "path": "./examples/browser-webpack/dist/v4-size.js", "maxSize": "1.0 kB" },
+    { "path": "./examples/browser-webpack/dist/v5-size.js", "maxSize": "1.9 kB" }
   ]
 }

From 375bf480c949352250f7d88907f1d438c6e0f5d7 Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Tue, 23 Jun 2020 12:12:21 -0700
Subject: [PATCH 12/17] chore: tweak function name

---
 examples/benchmark/benchmark.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/examples/benchmark/benchmark.js b/examples/benchmark/benchmark.js
index df78d3f4..cc36adcb 100644
--- a/examples/benchmark/benchmark.js
+++ b/examples/benchmark/benchmark.js
@@ -11,7 +11,7 @@ const uuidStringify =
 
 console.log('Starting. Tests take ~1 minute to run ...');
 
-function testParse() {
+function testParseAndStringify() {
   const suite = new Benchmark.Suite({
     onError(event) {
       console.error(event.target.error);
@@ -96,5 +96,5 @@ function testGeneration() {
     .run();
 }
 
-testParse();
+testParseAndStringify();
 testGeneration();

From d4a8ea5309ebe7b1af9493fef3058b28f7ad059b Mon Sep 17 00:00:00 2001
From: Christoph Tavan <dev@tavan.de>
Date: Tue, 23 Jun 2020 22:29:51 +0200
Subject: [PATCH 13/17] test: enable browserstack.console setting

---
 wdio.conf.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/wdio.conf.js b/wdio.conf.js
index 4be214bf..a7cea646 100644
--- a/wdio.conf.js
+++ b/wdio.conf.js
@@ -12,6 +12,7 @@ const commonCapabilities = {
   name: 'browser test',
   'browserstack.local': true,
   'browserstack.debug': false,
+  'browserstack.console': 'errors',
   resolution: '1024x768',
 };
 

From cc09c59f16a5c6a1f981a441e42c070dee75f0ec Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Tue, 23 Jun 2020 13:54:20 -0700
Subject: [PATCH 14/17] fix: revert padStart

---
 src/stringify.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/stringify.js b/src/stringify.js
index a5c998f6..bae7a351 100644
--- a/src/stringify.js
+++ b/src/stringify.js
@@ -5,7 +5,7 @@
 const byteToHex = [];
 
 for (let i = 0; i < 256; ++i) {
-  byteToHex.push(i.toString(16).padStart(2, '0'));
+  byteToHex.push((i + 0x100).toString(16).substr(1));
 }
 
 function stringify(arr, offset = 0) {

From 6813a913d22809551915cc4d12c677b5ab6dc64e Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Tue, 23 Jun 2020 14:33:57 -0700
Subject: [PATCH 15/17] fix: pr review comments

---
 src/stringify.js            |  2 +-
 src/v35.js                  | 10 ++++------
 test/unit/stringify.test.js | 17 ++++-------------
 3 files changed, 9 insertions(+), 20 deletions(-)

diff --git a/src/stringify.js b/src/stringify.js
index bae7a351..17e2b0df 100644
--- a/src/stringify.js
+++ b/src/stringify.js
@@ -42,7 +42,7 @@ function stringify(arr, offset = 0) {
   // individually.
   if (uuid.length !== 36) {
     throw new TypeError(
-      'Invalid result UUID.  Please insure input is array-like, and contains 16 integer values 0-255',
+      'Invalid result UUID.  Please ensure input is array-like, and contains 16 integer values 0-255',
     );
   }
 
diff --git a/src/v35.js b/src/v35.js
index a2d0b860..246eeb8a 100644
--- a/src/v35.js
+++ b/src/v35.js
@@ -26,15 +26,13 @@ export default function (name, version, hashfunc) {
       namespace = parse(namespace);
     }
 
-    if (!value[Symbol.iterator]) {
-      throw TypeError('Value must be iterable');
-    }
-
-    if (!namespace[Symbol.iterator] || namespace.length !== 16) {
+    if (namespace.length !== 16) {
       throw TypeError('Namespace must be array-like (16 iterable integer values, 0-255)');
     }
 
-    // Concatenate namespace and value bytes, Per 4.3
+    // Compute hash of namespace and value, Per 4.3
+    // Future: Use spread syntax when supported on all platforms, e.g. `bytes =
+    // hashfunc([...namespace, ... value])`
     let bytes = new Uint8Array(namespace.length + value.length);
     bytes.set(namespace);
     bytes.set(value, namespace.length);
diff --git a/test/unit/stringify.test.js b/test/unit/stringify.test.js
index f022e8e5..94de77d1 100644
--- a/test/unit/stringify.test.js
+++ b/test/unit/stringify.test.js
@@ -22,25 +22,16 @@ const BYTES = [
 
 describe('stringify', () => {
   test('Stringify Array', () => {
-    assert.deepStrictEqual(stringify(BYTES), '0f5abcd1-c194-47f3-905b-2df7263a084b');
+    assert.equal(stringify(BYTES), '0f5abcd1-c194-47f3-905b-2df7263a084b');
   });
 
   test('Stringify TypedArray', () => {
-    assert.deepStrictEqual(
-      stringify(Uint8Array.from(BYTES)),
-      '0f5abcd1-c194-47f3-905b-2df7263a084b',
-    );
-    assert.deepStrictEqual(
-      stringify(Int32Array.from(BYTES)),
-      '0f5abcd1-c194-47f3-905b-2df7263a084b',
-    );
+    assert.equal(stringify(Uint8Array.from(BYTES)), '0f5abcd1-c194-47f3-905b-2df7263a084b');
+    assert.equal(stringify(Int32Array.from(BYTES)), '0f5abcd1-c194-47f3-905b-2df7263a084b');
   });
 
   test('Stringify w/ offset', () => {
-    assert.deepStrictEqual(
-      stringify([0, 0, 0, ...BYTES], 3),
-      '0f5abcd1-c194-47f3-905b-2df7263a084b',
-    );
+    assert.equal(stringify([0, 0, 0, ...BYTES], 3), '0f5abcd1-c194-47f3-905b-2df7263a084b');
   });
 
   test('Throws on not enough values', () => {

From e76568f0fa2617520fe4c9fe56d7dcdda833f767 Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Tue, 23 Jun 2020 16:38:08 -0700
Subject: [PATCH 16/17] fix: no Array.from in IE11

---
 src/sha1-browser.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sha1-browser.js b/src/sha1-browser.js
index d2362ca0..377dc24c 100644
--- a/src/sha1-browser.js
+++ b/src/sha1-browser.js
@@ -31,7 +31,7 @@ function sha1(bytes) {
     }
   } else if (!Array.isArray(bytes)) {
     // Convert Array-like to Array
-    bytes = Array.from(bytes);
+    bytes = Array.prototype.slice.call(bytes);
   }
 
   bytes.push(0x80);

From e5bf27b8bb828cedbbe5fc7e9d93995f4ae0f40c Mon Sep 17 00:00:00 2001
From: Robert Kieffer <robert@broofa.com>
Date: Wed, 24 Jun 2020 07:40:19 -0700
Subject: [PATCH 17/17] improvement: hardcode namespace length
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Co-authored-by: Linus Unnebäck <linus@folkdatorn.se>
---
 src/v35.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/v35.js b/src/v35.js
index 246eeb8a..e8706ff0 100644
--- a/src/v35.js
+++ b/src/v35.js
@@ -33,7 +33,7 @@ export default function (name, version, hashfunc) {
     // Compute hash of namespace and value, Per 4.3
     // Future: Use spread syntax when supported on all platforms, e.g. `bytes =
     // hashfunc([...namespace, ... value])`
-    let bytes = new Uint8Array(namespace.length + value.length);
+    let bytes = new Uint8Array(16 + value.length);
     bytes.set(namespace);
     bytes.set(value, namespace.length);
     bytes = hashfunc(bytes);