Replace deprecated TSLint tool to ESLint, and fix vulnerabilities

.eslintrc.js

@@ -0,0 +1,58 @@
+module.exports = {
+  'env': {
+    'browser': true,
+    'es6': true,
+    'node': true
+  },
+  'extends': [
+    'eslint:recommended',
+    'plugin:react/recommended',
+    'plugin:@typescript-eslint/recommended'
+  ],
+  'parser': '@typescript-eslint/parser',
+  'parserOptions': {
+    'ecmaVersion': 2015,
+    'sourceType': 'module'
+  },
+  'plugins': [
+    'react',
+    '@typescript-eslint',
+    'import'
+  ],
+  'rules': {
+    'indent': ['error', 2, { 'SwitchCase': 1 }],
+    'quotes': ['warn', 'single', 'avoid-escape'],
+    'linebreak-style': ['error', 'unix'],
+    'camelcase': ['error', { 'properties': 'never' }],
+    'no-use-before-define': ['error', 'nofunc'],
+    'eol-last': ['error', 'always'],
+    'keyword-spacing': 'error',
+    'no-trailing-spaces': 'error',
+    'space-before-function-paren': ['error', {'named': 'never'}],
+    'react/display-name': 'off',
+    '@typescript-eslint/no-empty-function': 'off',
+    '@typescript-eslint/no-inferrable-types': 'off',
+    '@typescript-eslint/no-explicit-any': 'off',
+    '@typescript-eslint/no-non-null-assertion': 'off',
+    '@typescript-eslint/no-unused-vars': ['warn', { 'argsIgnorePattern': '^_' }],
+  },
+  'overrides': [{
+    'files': ['src/**/*.ts', 'src/**/*.tsx'],
+    'excludedFiles': ['src/**/__tests__/**'],
+    'extends': [
+      'plugin:compat/recommended'
+    ],
+    'settings': {
+      'polyfills': [
+        'Promise' // required as a polyfill by the user
+      ]
+    },
+    'rules': {
+      'no-restricted-syntax': ['error', 'ForOfStatement', 'ForInStatement'],
+      'compat/compat': ['error', 'defaults, not ie < 11'],
+      'no-throw-literal': 'error',
+      'import/no-self-import': 'error',
+      // 'import/no-default-export': 'error', // Default exports are a common practice in React
+    }
+  }]
+}

CHANGES.txt

@@ -1,3 +1,8 @@
+1.8.2 (April 3, 2023)
+ - Updated linter dependencies and rules. The deprecated TSLint package was replaced by ESLint.
+ - Updated some transitive dependencies for vulnerability fixes.
+ - Updated @splitsoftware/splitio package to version 10.22.4 that includes minor improvements.
+
 1.8.1 (December 16, 2022)
  - Updated some transitive dependencies for vulnerability fixes.
  - Bugfixing - Upgrade @splitsoftware/splitio dependency to version 10.22.3 which includes a memory leak fix for localhost mode (Related to issue https://github.com/splitio/javascript-commons/issues/181) among other improvements.
@@ -64,7 +69,7 @@
  - Updated Split's SDK package for vulnerability fixes.
 
 1.2.4 (February 11, 2021)
- - Updated CommonJS and ES Modules builds to always resolve browser modules of the Javascript SDK and avoid issues when using Node-based testing framework such as Jest (issues #13, #34).
+ - Updated CommonJS and ES Modules builds to always resolve browser modules of the JavaScript SDK and avoid issues when using Node-based testing framework such as Jest (issues #13, #34).
 
 1.2.3 (February 8, 2021)
  - Updated React peer dependency range to include React@17.x.x.

LICENSE

@@ -1,4 +1,4 @@
-Copyright © 2022 Split Software, Inc.
+Copyright © 2023 Split Software, Inc.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

README.md

@@ -79,8 +79,8 @@ Split has built and maintains SDKs for:
 * GO [Github](https://github.com/splitio/go-client) [Docs](https://help.split.io/hc/en-us/articles/360020093652-Go-SDK)
 * iOS [Github](https://github.com/splitio/ios-client) [Docs](https://help.split.io/hc/en-us/articles/360020401491-iOS-SDK)
 * Java [Github](https://github.com/splitio/java-client) [Docs](https://help.split.io/hc/en-us/articles/360020405151-Java-SDK)
-* Javascript [Github](https://github.com/splitio/javascript-client) [Docs](https://help.split.io/hc/en-us/articles/360020448791-JavaScript-SDK)
-* Javascript for Browser [Github](https://github.com/splitio/javascript-browser-client) [Docs](https://help.split.io/hc/en-us/articles/360058730852-Browser-SDK)
+* JavaScript [Github](https://github.com/splitio/javascript-client) [Docs](https://help.split.io/hc/en-us/articles/360020448791-JavaScript-SDK)
+* JavaScript for Browser [Github](https://github.com/splitio/javascript-browser-client) [Docs](https://help.split.io/hc/en-us/articles/360058730852-Browser-SDK)
 * Node [Github](https://github.com/splitio/javascript-client) [Docs](https://help.split.io/hc/en-us/articles/360020564931-Node-js-SDK)
 * PHP [Github](https://github.com/splitio/php-client) [Docs](https://help.split.io/hc/en-us/articles/360020350372-PHP-SDK)
 * Python [Github](https://github.com/splitio/python-client) [Docs](https://help.split.io/hc/en-us/articles/360020359652-Python-SDK)

jest.config.js

@@ -3,14 +3,18 @@ module.exports = {
 
   testEnvironment: 'jsdom',
 
-  setupFilesAfterEnv: ['./setupTests.js'],
+  globals: {
+    'ts-jest': {
+      tsconfig: 'tsconfig.jest.json',
+    }
+  },
 
   // Test files are .js, .jsx, .ts and .tsx files inside of __tests__ folders and with a suffix of .test or .spec
-  testMatch: [ "**/__tests__/**/?(*.)+(spec|test).[jt]s?(x)" ],
+  testMatch: ['**/__tests__/**/?(*.)+(spec|test).[jt]s?(x)'],
 
   // Included files for test coverage (npm run test:coverage)
   collectCoverageFrom: [
-    "src/**/*.{js,jsx,ts,tsx}",
-    "!src/__tests__/**",
+    'src/**/*.{js,jsx,ts,tsx}',
+    '!src/__tests__/**',
   ]
 };