feat: adding lt, lte, gt, gte number ops

src/gt.test.ts

@@ -0,0 +1,6 @@
+import * as $ from './index.js'
+
+test('gt', () => {
+  expect($.gt(1)(2)).toEqual($.ok(2))
+  expect($.gt(1)(1)).toEqual($.fail(1, 'expected greater than 1'))
+})

src/gt.ts

@@ -0,0 +1,10 @@
+import { ok, fail, type Refute } from './index.js'
+
+const gt =
+  (than: number): Refute<number> =>
+    value =>
+      typeof value === 'number' && value > than ?
+        ok(value) :
+        fail(value, `expected greater than ${than}`)
+
+export default gt

src/gte.test.ts

@@ -0,0 +1,7 @@
+import * as $ from './index.js'
+
+test('gte', () => {
+  expect($.gte(1)(2)).toEqual($.ok(2))
+  expect($.gte(1)(1)).toEqual($.ok(1))
+  expect($.gte(1)(0)).toEqual($.fail(0, 'expected greater than or equal to 1'))
+})

src/gte.ts

@@ -0,0 +1,10 @@
+import { ok, fail, type Refute } from './index.js'
+
+const gte =
+  (than: number): Refute<number> =>
+    value =>
+      typeof value === 'number' && value >= than ?
+        ok(value) :
+        fail(value, `expected greater than or equal to ${than}`)
+
+export default gte

src/index.ts

@@ -9,8 +9,12 @@ import exact from './exact.js'
 import exactPartial from './exact-partial.js'
 import false_ from './false.js'
 import finite from './finite.js'
+import gt from './gt.js'
+import gte from './gte.js'
 import is from './is.js'
 import lift from './lift.js'
+import lt from './lt.js'
+import lte from './lte.js'
 import null_ from './null.js'
 import nullishOr from './nullish-or.js'
 import nullOr from './null-or.js'
@@ -50,8 +54,12 @@ export {
   exactPartial,
   false_ as false,
   finite,
+  gt,
+  gte,
   is,
   lift,
+  lt,
+  lte,
   null_ as null,
   nullishOr,
   nullOr,

src/lt.test.ts

@@ -0,0 +1,6 @@
+import * as $ from './index.js'
+
+test('lt', () => {
+  expect($.lt(1)(0)).toEqual($.ok(0))
+  expect($.lt(1)(1)).toEqual($.fail(1, 'expected lower than 1'))
+})

src/lt.ts

@@ -0,0 +1,10 @@
+import { ok, fail, type Refute } from './index.js'
+
+const lt =
+  (than: number): Refute<number> =>
+    value =>
+      typeof value === 'number' && value < than ?
+        ok(value) :
+        fail(value, `expected lower than ${than}`)
+
+export default lt

src/lte.test.ts

@@ -0,0 +1,7 @@
+import * as $ from './index.js'
+
+test('lte', () => {
+  expect($.lte(1)(0)).toEqual($.ok(0))
+  expect($.lte(1)(1)).toEqual($.ok(1))
+  expect($.lte(1)(2)).toEqual($.fail(2, 'expected lower than or equal to 1'))
+})

src/lte.ts

@@ -0,0 +1,10 @@
+import { ok, fail, type Refute } from './index.js'
+
+const lte =
+  (than: number): Refute<number> =>
+    value =>
+      typeof value === 'number' && value <= than ?
+        ok(value) :
+        fail(value, `expected lower than or equal to ${than}`)
+
+export default lte