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webpack-uglify-js-plugin

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library1.1.9jsnpmunverified

An incremental UglifyJS plugin for webpack, version 1.1.9. Designed to cache minification results to speed up builds, it applies UglifyJS only to changed modules. Provides options for caching, source maps, compressor settings, and output configuration. No active releases since 2016; consider using webpack's built-in terser-webpack-plugin instead, which is actively maintained and supports modern JavaScript.

devops
npm install webpack-uglify-js-plugin
github ↗package ↗
INSTALL
IMPORT
SIG · WEBPACK-UGLIFY-JS-
W
webpack-uglify-js-plugin
devopsjavascriptv1.1.9
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 18–223 runs
build_error
glibc
node 18–223 runs
build_error
Code
Verified usage

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

default
✓ var webpackUglifyJsPlugin = require('webpack-uglify-js-plugin');
✗ import webpackUglifyJsPlugin from 'webpack-uglify-js-plugin';
Package uses CommonJS; no default export for ES6 imports.
default
✓ import webpackUglifyJsPlugin = require('webpack-uglify-js-plugin');
TypeScript with esModuleInterop: import * as webpackUglifyJsPlugin from 'webpack-uglify-js-plugin';
default
✓ const webpackUglifyJsPlugin = require('webpack-uglify-js-plugin');
✗ const { webpackUglifyJsPlugin } = require('webpack-uglify-js-plugin');
Export is a single function, not an object.

Configures webpack to use UglifyJS plugin with caching enabled, source maps off, and comments removed.

var path = require('path'); var webpackUglifyJsPlugin = require('webpack-uglify-js-plugin'); module.exports = { plugins: [ new webpackUglifyJsPlugin({ cacheFolder: path.resolve(__dirname, 'cached_uglify/'), debug: false, minimize: true, sourceMap: false, output: { comments: false }, compressor: { warnings: false } }) ] };
Debug
Known issues
deprecatedPackage is unmaintained since 2016; use terser-webpack-plugin instead.
fix
Replace with terser-webpack-plugin: npm install terser-webpack-plugin --save-dev
affects: >=0.0.0
gotchaRequires uglify-js as a peer dependency; not automatically installed.
fix
Run: npm install uglify-js --save-dev
affects: >=1.0.0
breakingOptions structure may conflict with webpack's built-in UglifyJsPlugin; use only this plugin's options.
fix
Remove any webpack.optimize.UglifyJsPlugin configuration.
affects: >=1.0.0
Errors
Common errors & fixes
Error: Cannot find module 'uglify-js'
Missing peer dependency uglify-js
fix
npm install uglify-js --save-dev
TypeError: webpackUglifyJsPlugin is not a constructor
Incorrect import, e.g., using ES6 default import without proper interop
fix
Use require('webpack-uglify-js-plugin') directly.
Invalid options object. UglifyJs Plugin has been initialized using an options object that does not match the API schema.
Mixing options from terser-webpack-plugin or webpack's built-in plugin
fix
Refer to the plugin's documentation for allowed options.
Upgrade
Version history
1.1.9latest on npm
Audit
Dependencies
uglify-jsrequiredpeer dependency for minification
Agent activity
18 hits · last 30 days
node
14
OpenAI (training)
2
Resources
githubhttps://github.com/pingyuanChen/webpack-uglify-js-plugin ↗
packagehttps://www.npmjs.com/package/webpack-uglify-js-plugin ↗
webpack-uglify-js-plugin — npm install webpack-uglify-js-plugin · libregistry