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@codemirror/lang-javascript

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@codemirror/lang-javascript

JavaScript language support for the CodeMirror code editor

  • 6.1.7
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
735K
increased by3.97%
Maintainers
2
Weekly downloads
 
Created

What is @codemirror/lang-javascript?

@codemirror/lang-javascript is a language support package for CodeMirror 6 that provides syntax highlighting, code folding, and other language-specific features for JavaScript. It is part of the CodeMirror 6 ecosystem, which is a versatile text editor implemented in JavaScript for the browser.

What are @codemirror/lang-javascript's main functionalities?

Syntax Highlighting

This code sets up a basic CodeMirror editor with JavaScript syntax highlighting. The `javascript` function from `@codemirror/lang-javascript` is used to enable JavaScript language support.

import { javascript } from '@codemirror/lang-javascript';
import { EditorState } from '@codemirror/state';
import { EditorView, basicSetup } from '@codemirror/basic-setup';

const state = EditorState.create({
  doc: 'const x = 10;',
  extensions: [basicSetup, javascript()]
});

const view = new EditorView({
  state,
  parent: document.body
});

Code Folding

This code demonstrates how to set up code folding in a CodeMirror editor with JavaScript language support. The `foldGutter` extension is used alongside `@codemirror/lang-javascript`.

import { javascript } from '@codemirror/lang-javascript';
import { foldGutter } from '@codemirror/fold';
import { EditorState } from '@codemirror/state';
import { EditorView, basicSetup } from '@codemirror/basic-setup';

const state = EditorState.create({
  doc: 'function foo() {\n  console.log("bar");\n}',
  extensions: [basicSetup, javascript(), foldGutter()]
});

const view = new EditorView({
  state,
  parent: document.body
});

Linting

This code sets up a custom linter in a CodeMirror editor with JavaScript language support. The `linter` function from `@codemirror/lint` is used to create a custom linting extension.

import { javascript } from '@codemirror/lang-javascript';
import { linter } from '@codemirror/lint';
import { EditorState } from '@codemirror/state';
import { EditorView, basicSetup } from '@codemirror/basic-setup';

const myLinter = linter(view => {
  let diagnostics = [];
  // Custom linting logic here
  return diagnostics;
});

const state = EditorState.create({
  doc: 'const x = 10;',
  extensions: [basicSetup, javascript(), myLinter]
});

const view = new EditorView({
  state,
  parent: document.body
});

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Package last updated on 19 Apr 2023

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