Registry / devops / rollup-plugin-uglify-es

rollup-plugin-uglify-es

library0.0.1jsnpmunverified

Rollup plugin for minifying ES6+ bundles using uglify-es (deprecated UglifyJS fork). Version 0.0.1, last updated in 2018, no active maintenance. Replaced by rollup-plugin-terser and @rollup/plugin-terser for better ES6+ support. Key differentiator: targeted ES6+ minification, but now obsolete as uglify-es is no longer maintained and has known bugs (e.g., mangling property names incorrectly). Alternatives should use terser instead.

devops

npm install rollup-plugin-uglify-es

github ↗package ↗

INSTALL

IMPORT

SIG · ROLLUP-PLUGIN-UGLI

rollup-plugin-uglify-es

devopsjavascriptv0.0.1

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

✓ import uglify from 'rollup-plugin-uglify-es';

✗ import { uglify } from 'rollup-plugin-uglify-es';

The plugin exports a default function, not a named export.

rollup

✓ import { rollup } from 'rollup';

Standard Rollup import; not part of this plugin but required for usage.

Minify a Rollup bundle using the deprecated uglify-es plugin with default options.

import { rollup } from 'rollup'; import uglify from 'rollup-plugin-uglify-es'; const bundle = await rollup({ input: 'src/index.js', plugins: [ uglify() ] }); await bundle.write({ file: 'bundle.min.js', format: 'cjs' });

Debug

Known issues

deprecatedrollup-plugin-uglify-es is deprecated and no longer maintained.

fix

Migrate to rollup-plugin-terser or @rollup/plugin-terser.

affects: >=0.0.0

breakinguglify-es has known bugs (e.g., property mangling errors) and is not compatible with modern JavaScript (ES2020+).

fix

Use terser instead, which is actively maintained and supports modern syntax.

affects: >=0.0.0

gotchaThe plugin does not support source maps out of the box; additional configuration may be needed.

fix

Pass sourceMap: true in options if source maps are required.

affects: >=0.0.0

Errors

Common errors & fixes

Error: Could not resolve 'uglify-es'

uglify-es is not installed or missing from node_modules.

fix

npm install uglify-es --save-dev

TypeError: uglify is not a function

Incorrect import style - using named import instead of default import.

fix

import uglify from 'rollup-plugin-uglify-es'; instead of import { uglify } from ...

SyntaxError: Unexpected token: punc (.)

uglify-es does not support newer JavaScript syntax (e.g., optional chaining).

fix

Switch to terser (rollup-plugin-terser) which supports modern syntax.

Upgrade

Version history

0.0.1latest on npm

Audit

Dependencies

uglify-esrequiredProvides the minification engine; used to minify ES6+ code but is deprecated and unmaintained.

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/ezekielchentnik/rollup-plugin-uglify-es ↗

packagehttps://www.npmjs.com/package/rollup-plugin-uglify-es ↗