chore: migrate from TSLint to ESLint

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+  "eslint.rules.customizations": [{ "rule": "*", "severity": "warn" }]
+}

packages/typescript-babel/README.md

@@ -5,7 +5,7 @@ This is a example that uses Babel to transform TypeScript to plain JavaScript, a
 ## Commands
 
 - `npm run check-types` - check types for TypeScript.
-- `npm run lint` - run the TypeScript linter using the `tslint.json` config file.
+- `npm run lint` - run ESLint with typescript-eslint
 - `npm run compile` - compile the ES6 TypeScript into the `/lib` directory.
 - `npm test` - run the tests using the local `.mocharc.json` config file. Babel Config set is inside `babel.config.js`.
 

packages/typescript-babel/eslint.config.mjs

@@ -0,0 +1,9 @@
+import eslint from "@eslint/js";
+import tseslint from "typescript-eslint";
+
+export default tseslint.config(
+  { ignores: ["lib", "test/babel-register.js", "*.config.js"] },
+  eslint.configs.recommended,
+  ...tseslint.configs.recommended,
+  ...tseslint.configs.stylistic,
+);

packages/typescript-babel/package.json

@@ -6,7 +6,7 @@
   "types": "lib/index.d.ts",
   "scripts": {
     "check-types": "tsc",
-    "lint": "tslint --project tsconfig.json",
+    "lint": "eslint .",
     "compile": "babel src -d lib --extensions '.ts,.tsx'",
     "prepublish": "npm run check-types && npm run compile",
     "test": "mocha"
@@ -22,11 +22,13 @@
     "@babel/preset-env": "^7.4.1",
     "@babel/preset-typescript": "^7.3.3",
     "@babel/register": "^7.6.2",
+    "@eslint/js": "^9.12.0",
     "@types/mocha": "latest",
     "assert": "^2.0.0",
+    "eslint": "^9.12.0",
     "mocha": "latest",
-    "tslint": "^6.1.3",
-    "typescript": "^4.2.4"
+    "typescript": "^4.9.5",
+    "typescript-eslint": "^8.8.1"
   },
   "engines": {
     "node": ">=10.0.0"

packages/typescript/README.md

@@ -7,7 +7,7 @@ Tests here are kept next to their code (not in a separate dir). This was done to
 ## Commands
 
 - `npm run compile` - compile the ES6 Typescript into the `/lib` directory
-- `npm run lint` - run the Typescript linter using the `tslint.json` config file.
+- `npm run lint` - run ESLint with typescript-eslint
 - `npm test` - run the tests using the local `.mocharc.json` config file. As the config includes the Typescript transpilation hook `ts-node/register` it does not require pre-compilation before running.
 
 ## ES Modules

packages/typescript/eslint.config.mjs

@@ -0,0 +1,9 @@
+import eslint from "@eslint/js";
+import tseslint from "typescript-eslint";
+
+export default tseslint.config(
+  { ignores: ["lib"] },
+  eslint.configs.recommended,
+  ...tseslint.configs.recommended,
+  ...tseslint.configs.stylistic,
+);

packages/typescript/package.json

@@ -6,7 +6,7 @@
   "types": "lib/index.d.ts",
   "scripts": {
     "compile": "tsc --declaration",
-    "lint": "tslint --project tsconfig.json",
+    "lint": "eslint .",
     "prepublish": "npm run compile",
     "test": "mocha"
   },
@@ -16,12 +16,14 @@
     "test": "./src"
   },
   "devDependencies": {
+    "@eslint/js": "^9.12.0",
     "@types/mocha": "latest",
     "assert": "^2.0.0",
+    "eslint": "^9.12.0",
     "mocha": "latest",
     "ts-node": "^9.1.1",
-    "tslint": "^6.1.3",
-    "typescript": "^4.2.4"
+    "typescript": "^4.9.5",
+    "typescript-eslint": "^8.8.1"
   },
   "engines": {
     "node": ">=10.0.0"