diff --git a/.github/workflows/examples.yml b/.github/workflows/examples.yml
index 1b9ffa341..137767912 100644
--- a/.github/workflows/examples.yml
+++ b/.github/workflows/examples.yml
@@ -30,3 +30,33 @@ jobs:
working-directory: examples/nodejs
- run: npm run test
working-directory: examples/nodejs
+ typescript:
+
+ runs-on: ubuntu-latest
+
+ strategy:
+ matrix:
+ node-version:
+ - 10
+ - 12
+ - 14
+ - 16
+ ts-version:
+ - 3.8
+ - 3.9
+ - 4
+
+ steps:
+ - uses: actions/checkout@v2
+ - name: Use Node.js ${{ matrix.node-version }}
+ uses: actions/setup-node@v2
+ with:
+ node-version: ${{ matrix.node-version }}
+ - run: ./pretest.sh ${{ matrix.ts-version }}
+ working-directory: examples/typescript
+ - run: node --experimental-modules dist/index.js
+ if: ${{ matrix.node-version == 12 }}
+ working-directory: examples/typescript
+ - run: node dist/index.js
+ if: ${{ matrix.node-version > 12 }}
+ working-directory: examples/typescript
diff --git a/examples/typescript/.gitignore b/examples/typescript/.gitignore
new file mode 100644
index 000000000..91a3983f3
--- /dev/null
+++ b/examples/typescript/.gitignore
@@ -0,0 +1,3 @@
+dist
+node_modules
+package-lock.json
diff --git a/examples/typescript/.npmrc b/examples/typescript/.npmrc
new file mode 100644
index 000000000..43c97e719
--- /dev/null
+++ b/examples/typescript/.npmrc
@@ -0,0 +1 @@
+package-lock=false
diff --git a/examples/typescript/package.json b/examples/typescript/package.json
new file mode 100644
index 000000000..e2718049f
--- /dev/null
+++ b/examples/typescript/package.json
@@ -0,0 +1,22 @@
+{
+ "name": "@xmldom/xmldom-example-typescript",
+ "private": true,
+ "description": "",
+ "main": "index.js",
+ "type": "module",
+ "scripts": {
+ "tsc": "tsc",
+ "test": "node dist/index.js"
+ },
+ "keywords": [
+ "test",
+ "typescript"
+ ],
+ "license": "MIT",
+ "devDependencies": {
+ "typescript": "^3.9.10"
+ },
+ "dependencies": {
+ "@xmldom/xmldom": "file:../.."
+ }
+}
diff --git a/examples/typescript/pretest.sh b/examples/typescript/pretest.sh
new file mode 100755
index 000000000..bb1ccd3d6
--- /dev/null
+++ b/examples/typescript/pretest.sh
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -eu
+
+rm -rf node_modules dist
+
+npm i
+[[ ${1:-''} ]] \
+ && npm i -D typescript@${1} --no-save \
+ || echo "Using TypeScript $(node_modules/.bin/tsc --version) (change with first argument)"
+npm run tsc
diff --git a/examples/typescript/src/index.ts b/examples/typescript/src/index.ts
new file mode 100644
index 000000000..bb3792485
--- /dev/null
+++ b/examples/typescript/src/index.ts
@@ -0,0 +1,14 @@
+import {DOMParser, XMLSerializer} from '@xmldom/xmldom';
+
+const source = `
+ test
+
+`
+
+const doc = new DOMParser().parseFromString(source, 'text/xml')
+
+const serialized = new XMLSerializer().serializeToString(doc)
+
+if (source !== serialized) {
+ throw `expected\n${source}\nbut was\n${serialized}`
+}
diff --git a/examples/typescript/tsconfig.json b/examples/typescript/tsconfig.json
new file mode 100644
index 000000000..0a80aa7cd
--- /dev/null
+++ b/examples/typescript/tsconfig.json
@@ -0,0 +1,100 @@
+{
+ "compilerOptions": {
+ /* Visit https://aka.ms/tsconfig.json to read more about this file */
+
+ /* Projects */
+ // "incremental": true, /* Enable incremental compilation */
+ // "composite": true, /* Enable constraints that allow a TypeScript project to be used with project references. */
+ // "tsBuildInfoFile": "./", /* Specify the folder for .tsbuildinfo incremental compilation files. */
+ // "disableSourceOfProjectReferenceRedirect": true, /* Disable preferring source files instead of declaration files when referencing composite projects */
+ // "disableSolutionSearching": true, /* Opt a project out of multi-project reference checking when editing. */
+ // "disableReferencedProjectLoad": true, /* Reduce the number of projects loaded automatically by TypeScript. */
+
+ /* Language and Environment */
+ "target": "es5", /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
+ "lib": ["ES5"], /* Specify a set of bundled library declaration files that describe the target runtime environment. */
+ // "jsx": "preserve", /* Specify what JSX code is generated. */
+ // "experimentalDecorators": true, /* Enable experimental support for TC39 stage 2 draft decorators. */
+ // "emitDecoratorMetadata": true, /* Emit design-type metadata for decorated declarations in source files. */
+ // "jsxFactory": "", /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h' */
+ // "jsxFragmentFactory": "", /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
+ // "jsxImportSource": "", /* Specify module specifier used to import the JSX factory functions when using `jsx: react-jsx*`.` */
+ // "reactNamespace": "", /* Specify the object invoked for `createElement`. This only applies when targeting `react` JSX emit. */
+ // "noLib": true, /* Disable including any library files, including the default lib.d.ts. */
+ // "useDefineForClassFields": true, /* Emit ECMAScript-standard-compliant class fields. */
+
+ /* Modules */
+ "module": "ES2020", /* Specify what module code is generated. */
+ // "rootDir": "./", /* Specify the root folder within your source files. */
+ "moduleResolution": "node", /* Specify how TypeScript looks up a file from a given module specifier. */
+ // "baseUrl": "./", /* Specify the base directory to resolve non-relative module names. */
+ // "paths": {}, /* Specify a set of entries that re-map imports to additional lookup locations. */
+ // "rootDirs": [], /* Allow multiple folders to be treated as one when resolving modules. */
+ // "typeRoots": [], /* Specify multiple folders that act like `./node_modules/@types`. */
+ // "types": [], /* Specify type package names to be included without being referenced in a source file. */
+ // "allowUmdGlobalAccess": true, /* Allow accessing UMD globals from modules. */
+ // "resolveJsonModule": true, /* Enable importing .json files */
+ // "noResolve": true, /* Disallow `import`s, `require`s or ``s from expanding the number of files TypeScript should add to a project. */
+
+ /* JavaScript Support */
+ // "allowJs": true, /* Allow JavaScript files to be a part of your program. Use the `checkJS` option to get errors from these files. */
+ // "checkJs": true, /* Enable error reporting in type-checked JavaScript files. */
+ // "maxNodeModuleJsDepth": 1, /* Specify the maximum folder depth used for checking JavaScript files from `node_modules`. Only applicable with `allowJs`. */
+
+ /* Emit */
+ "declaration": true, /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
+ // "declarationMap": true, /* Create sourcemaps for d.ts files. */
+ // "emitDeclarationOnly": true, /* Only output d.ts files and not JavaScript files. */
+ // "sourceMap": true, /* Create source map files for emitted JavaScript files. */
+ // "outFile": "./", /* Specify a file that bundles all outputs into one JavaScript file. If `declaration` is true, also designates a file that bundles all .d.ts output. */
+ "outDir": "./dist", /* Specify an output folder for all emitted files. */
+ // "removeComments": true, /* Disable emitting comments. */
+ // "noEmit": true, /* Disable emitting files from a compilation. */
+ // "importHelpers": true, /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
+ // "importsNotUsedAsValues": "remove", /* Specify emit/checking behavior for imports that are only used for types */
+ // "downlevelIteration": true, /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
+ // "sourceRoot": "", /* Specify the root path for debuggers to find the reference source code. */
+ // "mapRoot": "", /* Specify the location where debugger should locate map files instead of generated locations. */
+ // "inlineSourceMap": true, /* Include sourcemap files inside the emitted JavaScript. */
+ // "inlineSources": true, /* Include source code in the sourcemaps inside the emitted JavaScript. */
+ // "emitBOM": true, /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
+ // "newLine": "crlf", /* Set the newline character for emitting files. */
+ // "stripInternal": true, /* Disable emitting declarations that have `@internal` in their JSDoc comments. */
+ // "noEmitHelpers": true, /* Disable generating custom helper functions like `__extends` in compiled output. */
+ // "noEmitOnError": true, /* Disable emitting files if any type checking errors are reported. */
+ // "preserveConstEnums": true, /* Disable erasing `const enum` declarations in generated code. */
+ // "declarationDir": "./", /* Specify the output directory for generated declaration files. */
+
+ /* Interop Constraints */
+ // "isolatedModules": true, /* Ensure that each file can be safely transpiled without relying on other imports. */
+ // "allowSyntheticDefaultImports": true, /* Allow 'import x from y' when a module doesn't have a default export. */
+ "esModuleInterop": true, /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables `allowSyntheticDefaultImports` for type compatibility. */
+ // "preserveSymlinks": true, /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */
+ "forceConsistentCasingInFileNames": true, /* Ensure that casing is correct in imports. */
+
+ /* Type Checking */
+ "strict": true, /* Enable all strict type-checking options. */
+ // "noImplicitAny": true, /* Enable error reporting for expressions and declarations with an implied `any` type.. */
+ // "strictNullChecks": true, /* When type checking, take into account `null` and `undefined`. */
+ // "strictFunctionTypes": true, /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
+ // "strictBindCallApply": true, /* Check that the arguments for `bind`, `call`, and `apply` methods match the original function. */
+ // "strictPropertyInitialization": true, /* Check for class properties that are declared but not set in the constructor. */
+ // "noImplicitThis": true, /* Enable error reporting when `this` is given the type `any`. */
+ // "useUnknownInCatchVariables": true, /* Type catch clause variables as 'unknown' instead of 'any'. */
+ // "alwaysStrict": true, /* Ensure 'use strict' is always emitted. */
+ // "noUnusedLocals": true, /* Enable error reporting when a local variables aren't read. */
+ // "noUnusedParameters": true, /* Raise an error when a function parameter isn't read */
+ // "exactOptionalPropertyTypes": true, /* Interpret optional property types as written, rather than adding 'undefined'. */
+ // "noImplicitReturns": true, /* Enable error reporting for codepaths that do not explicitly return in a function. */
+ // "noFallthroughCasesInSwitch": true, /* Enable error reporting for fallthrough cases in switch statements. */
+ // "noUncheckedIndexedAccess": true, /* Include 'undefined' in index signature results */
+ // "noImplicitOverride": true, /* Ensure overriding members in derived classes are marked with an override modifier. */
+ // "noPropertyAccessFromIndexSignature": true, /* Enforces using indexed accessors for keys declared using an indexed type */
+ // "allowUnusedLabels": true, /* Disable error reporting for unused labels. */
+ // "allowUnreachableCode": true, /* Disable error reporting for unreachable code. */
+
+ /* Completeness */
+ // "skipDefaultLibCheck": true, /* Skip type checking .d.ts files that are included with TypeScript. */
+ "skipLibCheck": true /* Skip type checking all .d.ts files. */
+ }
+}