Refactor: prefer Array.prototype.at() (#749)

.eslintrc

@@ -78,12 +78,13 @@
     // ***** Functions *****
     "unicorn/prefer-default-parameters": "error",
 
-    // ***** Loops *****
-    "unicorn/prefer-array-find": "error",
-
     // ***** Operands *****
     "@typescript-eslint/prefer-nullish-coalescing": "error",
 
+    // ***** Arrays *****
+    "unicorn/prefer-array-find": "error",
+    "unicorn/prefer-at": "error",
+
     // ***** Numbers *****
     "unicorn/no-zero-fractions": "error",
     "unicorn/number-literal-case": "error",

.github/workflows/node-test.yml

@@ -61,7 +61,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu, macos, windows ]
-        node-version: [ lts/*, lts/-1, 16.3.0 ]
+        node-version: [ lts/*, lts/-1, 16.6.0 ]
     steps:
       # Setup and install
       - uses: actions/checkout@v4
@@ -81,7 +81,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [ lts/*, lts/-1, 16.3.0 ]
+        node-version: [ lts/*, lts/-1, 16.6.0 ]
     steps:
       # Setup and install
       - uses: actions/checkout@v4
@@ -121,7 +121,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [ lts/*, lts/-1, 16.3.0 ]
+        node-version: [ lts/*, lts/-1, 16.6.0 ]
     steps:
       # Setup and install
       - uses: actions/checkout@v4

package.json

@@ -133,12 +133,14 @@
     "which": "4.0.0"
   },
   "//engines": [
+    "Requires >=14.17.0 for TypeScript v5.1.",
     "Requires ^12.20.0 || ^14.13.1 || >=16.0.0 for ES6 modules, even though `tsc` can target ES5 or lower.",
     "Requires ^14.18.0 || >=16.0.0 for `node:` prefixed built-in modules that many dependencies use.",
     "Requires >=15.0.0 for npm v7 for package-lock.json v3 because Renovate stopped respecting the existing version in August 2023.",
-    "Requires ^14.18.0 || >=16.3.0 for `os.devNull`."
+    "Requires ^14.18.0 || >=16.3.0 for `os.devNull`.",
+    "Requires >=16.16.0 for `Array.prototype.at()`."
   ],
   "engines": {
-    "node": ">=16.3.0"
+    "node": ">=16.6.0"
   }
 }

src/modules/argumentsParser.ts

@@ -23,7 +23,7 @@ export default class ArgumentsParser {
 
   private static getLastValue<T>(arr: T | T[]): T {
     if (Array.isArray(arr) && arr.length) {
-      return arr[arr.length - 1];
+      return arr.at(-1) as T;
     }
     return arr as T;
   }

src/modules/datGameInferrer.ts

@@ -45,7 +45,7 @@ export default class DATGameInferrer extends Module {
   }
 
   private static getDatName(file: File): string {
-    return path.dirname(file.getFilePath()).split(/[\\/]/).slice(-1)[0];
+    return path.dirname(file.getFilePath()).split(/[\\/]/).at(-1) ?? file.getFilePath();
   }
 
   private static createDAT(datName: string, romFiles: File[]): DAT {

test/console/progressBarCliSpy.ts

@@ -33,7 +33,7 @@ export default class ProgressBarCLISpy {
   }
 
   getLastLine(): string {
-    return this.outputLines[this.outputLines.length - 1];
+    return this.outputLines.at(-1) ?? '';
   }
 
   getLogLine(): string | undefined {