Registry / web-framework / highlight.js-async-webpack

highlight.js-async-webpack

library1.0.4jsnpmunverified

Wraps highlight.js language modules as async webpack chunks, enabling on-demand loading of syntax highlighting. Version 1.0.4 (latest) returns false on error. Provides `hljsBlock(dom, lang, callback)` for async highlighting. Minimal API, no peer dependencies. Only compatible with webpack due to dynamic require context. Not actively maintained; last release 5+ years ago.

web-framework

npm install highlight.js-async-webpack

github ↗package ↗

INSTALL

IMPORT

SIG · HIGHLIGHT.JS-ASYNC

highlight.js-async-webpack

web-frameworkjavascriptv1.0.4

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ import hljs from 'highlight.js-async-webpack'

✗ const hljs = require('highlight.js-async-webpack')

ESM default import only; CommonJS require may return broken object

hljsBlock

✓ hljs.hljsBlock(dom, lang, callback)

✗ hljs.hljsBlock(dom, lang)

Callback is required; omitted callback will break async flow

hljsBlock

✓ import hljs from 'highlight.js-async-webpack'; hljs.hljsBlock(...)

✗ import { hljsBlock } from 'highlight.js-async-webpack'

Named export not available; must use default import

Demonstrates importing the package and invoking hljsBlock with a DOM element, language class, and callback.

import hljs from 'highlight.js-async-webpack'; const codeElement = document.querySelector('code.language-javascript'); if (codeElement) { hljs.hljsBlock(codeElement, 'javascript', () => { console.log('Highlighting complete'); }); }

Debug

Known issues

deprecatedPackage not updated since 2018; may not work with modern webpack (4/5) or Node.js versions.

fix

Consider using highlight.js with dynamic imports directly, or use highlight.js official npm package.

affects: >=1.0.4

breakingRequires webpack and a specific async chunk naming convention; not compatible with other bundlers.

fix

Use only in webpack projects; for others, use highlight.js manual chunking.

affects: >=0.0.0

gotchaThe callback is mandatory; omitting it will cause the highlighting to never complete.

fix

Always provide a callback function even if it's a no-op.

affects: >=1.0.2

gotchaLanguage files must exist at runtime; package does not include all languages by default.

fix

Ensure the required language files are present in the webpack build context.

affects: >=0.0.0

Errors

Common errors & fixes

Cannot find module 'highlight.js-async-webpack'

Package not installed or not in node_modules.

fix

Run: npm install highlight.js-async-webpack

TypeError: hljs.hljsBlock is not a function

Incorrect import (e.g., named import) or using require instead of import.

fix

Use: import hljs from 'highlight.js-async-webpack' (default import)

Error: Cannot find module './lang/xxx'

Requested language file not available in the async chunk path.

fix

Check that the language name passed to hljsBlock matches an existing file like 'javascript' (not 'js').

Upgrade

Version history

1.0.4latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

6 hits · last 30 days

node

Resources

githubhttps://github.com/CHENXCHEN/highlight.js-async-webpack ↗

packagehttps://www.npmjs.com/package/highlight.js-async-webpack ↗