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@shikijs/engine-javascript

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@shikijs/engine-javascript

Engine for Shiki using JavaScript's native RegExp

  • 1.24.2
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What is @shikijs/engine-javascript?

@shikijs/engine-javascript is a syntax highlighting engine specifically designed for JavaScript. It is part of the Shiki library, which is a beautiful syntax highlighter. This package allows you to highlight JavaScript code with ease, providing a visually appealing and readable format.

What are @shikijs/engine-javascript's main functionalities?

Basic Syntax Highlighting

This feature allows you to highlight JavaScript code using a specified theme. In this example, the 'nord' theme is used to highlight a simple JavaScript code snippet.

const shiki = require('shiki');

shiki.getHighlighter({ theme: 'nord' }).then(highlighter => {
  const code = `const x = 10;`;
  console.log(highlighter.codeToHtml(code, { lang: 'js' }));
});

Custom Themes

This feature allows you to load and use custom themes for syntax highlighting. The example demonstrates how to load a custom theme from a JSON file and use it to highlight JavaScript code.

const shiki = require('shiki');

shiki.loadTheme('./path/to/custom-theme.json').then(theme => {
  return shiki.getHighlighter({ theme });
}).then(highlighter => {
  const code = `const y = 20;`;
  console.log(highlighter.codeToHtml(code, { lang: 'js' }));
});

Highlighting with Line Numbers

This feature allows you to include line numbers in the highlighted code output. The example shows how to highlight a JavaScript function with line numbers using the 'nord' theme.

const shiki = require('shiki');

shiki.getHighlighter({ theme: 'nord' }).then(highlighter => {
  const code = `function add(a, b) {
  return a + b;
}`;
  console.log(highlighter.codeToHtml(code, { lang: 'js', lineNumbers: true }));
});

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Package last updated on 10 Dec 2024

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