Migration to Typescript

.eslintrc.js

@@ -0,0 +1,23 @@
+module.exports = {
+  root: true,
+  parser: '@typescript-eslint/parser',
+  extends: [
+    // 'plugin:vue-libs/recommended',
+    'plugin:@typescript-eslint/recommended',
+    'prettier/@typescript-eslint', // Uses eslint-config-prettier to disable ESLint rules from @typescript-eslint/eslint-plugin that would conflict with prettier
+    'plugin:prettier/recommended', // Enables eslint-plugin-prettier and displays prettier errors as ESLint errors. Make sure this is always the last configuration in the extends array.
+  ],
+  parserOptions: {
+    ecmaVersion: 2018, // Allows for the parsing of modern ECMAScript features
+    sourceType: 'module', // Allows for the use of imports
+  },
+  rules: {
+    '@typescript-eslint/no-explicit-any': 0,
+    '@typescript-eslint/explicit-function-return-type': 0,
+    '@typescript-eslint/no-use-before-define': ['error', { functions: false }],
+    '@typescript-eslint/explicit-member-accessibility': ['error', { accessibility: 'no-public' }],
+  },
+  env: {
+    jest: true,
+  },
+}

.gitignore

@@ -6,3 +6,4 @@ dist
 lerna-debug.log
 yarn-error.log
 packages/*/*.tgz
+.rpt2_cache

.vscode/settings.json

@@ -0,0 +1,11 @@
+{
+  "eslint.autoFixOnSave": true,
+  "eslint.validate": ["javascript", { "language": "typescript", "autoFix": true }],
+  "editor.formatOnSave": true,
+  "[javascript]": {
+    "editor.formatOnSave": false
+  },
+  "[typescript]": {
+    "editor.formatOnSave": false
+  }
+}

package.json

@@ -12,13 +12,30 @@
     }
   },
   "devDependencies": {
+    "@typescript-eslint/eslint-plugin": "^1.12.0",
+    "@typescript-eslint/parser": "^1.12.0",
     "conventional-changelog-cli": "^2.0.21",
+    "codecov": "^3.5.0",
     "cz-conventional-changelog": "^2.1.0",
-    "lerna": "^3.15.0"
+    "eslint": "^6.0.1",
+    "eslint-config-prettier": "^6.0.0",
+    "eslint-plugin-prettier": "^3.1.0",
+    "lerna": "^3.15.0",
+    "prettier": "^1.18.2",
+    "rimraf": "^2.6.3",
+    "rollup": "^1.16.7",
+    "rollup-plugin-alias": "^1.5.2",
+    "rollup-plugin-commonjs": "^10.0.1",
+    "rollup-plugin-node-resolve": "^5.2.0",
+    "rollup-plugin-replace": "^2.2.0",
+    "rollup-plugin-strip-banner": "^0.2.0",
+    "rollup-plugin-terser": "^5.1.1",
+    "rollup-plugin-typescript2": "^0.22.0"
   },
   "scripts": {
     "prerelease": "lerna version -m 'chore(release): publish'",
     "release": "lerna publish from-git",
+    "prepare": "lerna run prepare",
     "changelog": "conventional-changelog -p angular -r 2 -i CHANGELOG.md -s",
     "test": "lerna run test"
   }