JavaScript- and TypeScript-specific features and guidance
Table of Contents 
<summary>Language Info for JavaScript</summary>
<div class="card">
    <ul class="list-group list-group-flush">
        
        <li class="list-group-item">Implementation: <a href="https://docs.pmd-code.org/apidocs/pmd-javascript/7.0.0-SNAPSHOT/net/sourceforge/pmd/lang/ecmascript/EcmascriptLanguageModule.html#"><code>EcmascriptLanguageModule</code></a></li>
        <li class="list-group-item">Id: ecmascript</li>
        <li class="list-group-item">PMD: ✔️</li>
        <li class="list-group-item">CPD: ✔️</li>
    </ul>
</div>

<summary>Language Info for TypeScript</summary>
<div class="card">
    <ul class="list-group list-group-flush">
        <li class="list-group-item">Since PMD 7.0.0</li>
        <li class="list-group-item">Implementation: <a href="https://docs.pmd-code.org/apidocs/pmd-javascript/7.0.0-SNAPSHOT/net/sourceforge/pmd/lang/ecmascript/EcmascriptLanguageModule.html#"><code>EcmascriptLanguageModule</code></a></li>
        <li class="list-group-item">Id: ts</li>
        <li class="list-group-item">PMD: ❌</li>
        <li class="list-group-item">CPD: ✔️</li>
    </ul>
</div>

JavaScript

JavaScript support is using Rhino for parsing and supports CPD as well as PMD with rules.

See Compatibility Table for supported language features.

TypeScript

TypeScript is supported for Copy-Paste-Detection only and uses the ANTLR grammar from antlr/grammars-v4. This grammar is published under the MIT license.

Tags: languages PmdCapableLanguage CpdCapableLanguage