initial commit

.eslintrc.cjs

@@ -0,0 +1,29 @@
+module.exports = {
+    "env": {
+        "browser": true,
+        "es2022": true,
+        "node": true
+    },
+    "extends": "standard-with-typescript",
+    "overrides": [
+        {
+            "env": {
+                "node": true
+            },
+            "files": [
+                ".eslintrc.{js,cjs}"
+            ],
+            "parserOptions": {
+                "sourceType": "script"
+            }
+        }
+    ],
+    "parserOptions": {
+        "ecmaVersion": "latest",
+        "sourceType": "module"
+    },
+    "rules": {
+        "@typescript-eslint/no-non-null-assertion": "off",
+        "@typescript-eslint/strict-boolean-expressions": "off",
+    }
+}

.github/workflows/tests.yaml

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+name: Tests
+on: [push]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+          cache: 'npm'
+      - run: npm ci
+      - run: npm test

.gitignore

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+lib
+coverage
+node_modules
+.idea
+dist

babel.config.json

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+{
+    "presets": [
+        [
+            "@babel/preset-env",
+            {
+                "targets": {
+                    "node": "current"
+                }
+            }
+        ]
+    ]
+}

jest-env-jsdom.js

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+import { TextEncoder, TextDecoder } from "util";
+import pkg from 'jest-environment-jsdom';
+const { default: $JSDOMEnvironment } = pkg;
+export default class JSDOMEnvironment extends $JSDOMEnvironment {
+    constructor(...args) {
+        const { global } = super(...args);
+        if (!global.TextEncoder)
+            global.TextEncoder = TextEncoder;
+        if (!global.TextDecoder)
+            global.TextDecoder = TextDecoder;
+    }
+}

jest.config.cjs

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+/** @type {import('ts-jest').JestConfigWithTsJest} */
+
+module.exports = {
+  preset: "ts-jest",
+    testEnvironment: "jsdom",
+    moduleFileExtensions: ["js", "jsx", "ts", "tsx"],
+    testPathIgnorePatterns: ["/node_modules/"],
+    testRegex: ".*.(test|spec).(j|t)s[x]?$",
+    transform: {
+        "node_modules/(react-dnd|dnd-core|@react-dnd)/.+\\.(j|t)sx?$": "ts-jest",
+        "^.+\\.js$": "babel-jest",
+    },
+    testEnvironment: "./jest-env-jsdom.js",
+    transformIgnorePatterns: [`/node_modules/(?!(filenamify)|filename-reserved-regex)`],
+  }
+
+/*
+module.exports = {
+  
+  transform: {'^.+\\.ts?$': 'ts-jest'},
+  
+  testRegex: '/tests/.*\\.(test|spec)?\\.(ts|tsx)$',
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
+
+  //testEnvironment: "./jest-env-jsdom.js",
+  
+  extensionsToTreatAsEsm: ['.ts'],
+
+  transformIgnorePatterns: [
+    "node_modules/(filenamify)"
+  ]
+};
+*/