Registry / web-framework / rollup-plugin-optimize-js

rollup-plugin-optimize-js

library0.0.4jsnpmunverified

Rollup plugin to run minified bundles through the optimize-js tool, which wraps immediately-invoked or likely-to-be-invoked functions in parentheses to improve initial parsing and execution speed. Current version is 0.0.4, last published in 2017 and appears to be unmaintained (no recent updates, repository archived or inactive). Differentiator: it applies optimize-js after minification to restore optimizations that might have been undone by UglifyJS. Consider using modern alternatives like Rollup's built-in optimization or other plugins.

web-framework devops

npm install rollup-plugin-optimize-js

github ↗package ↗

INSTALL

IMPORT

SIG · ROLLUP-PLUGIN-OPTI

rollup-plugin-optimize-js

web-frameworkjavascriptv0.0.4

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 18–223 runs

build_error

glibc

node 18–223 runs

build_error

Code

Verified usage

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

optimizeJs

✓ import optimizeJs from 'rollup-plugin-optimize-js'

✗ const optimizeJs = require('rollup-plugin-optimize-js').default

Default export, use default import or require with no .default (though require works as it's CJS). In TypeScript, use default import if module allows.

optimizeJs (as plugin in rollup config)

✓ optimizeJs()

✗ new optimizeJs()

The plugin is a function that returns a plugin object, not a class constructor.

optimizeJs (CommonJS require)

✓ const optimizeJs = require('rollup-plugin-optimize-js');

CommonJS require works directly as the package is CJS.

Shows how to integrate the plugin in a Rollup config, applying it after uglify to optimize invoked functions.

// rollup.config.js import optimizeJs from 'rollup-plugin-optimize-js'; import { uglify } from 'rollup-plugin-uglify'; import buble from 'rollup-plugin-buble'; export default { input: 'src/index.js', output: { file: 'bundle.js', format: 'iife', sourcemap: true }, plugins: [ buble(), uglify({ compress: { negate_iife: false // avoid conflict with optimize-js } }), optimizeJs() ] };

Debug

Known issues

deprecatedPackage is unmaintained since 2017. No support for modern Rollup versions (Rollup > 1.x).

fix

Consider using Rollup's built-in optimizations or manually applying optimize-js as a post-build step.

affects: >=0.0.4

breakingPlugin may cause errors with Rollup 1.x due to API changes (e.g., transformBundle removed).

fix

Downgrade Rollup to 0.x or switch to an alternative plugin.

affects: >=1.0.0

gotchaMust be placed after minification plugins (e.g., uglify) in the plugin list, otherwise it may not work correctly.

fix

Ensure order: other plugins -> minify -> optimizeJs.

affects: >=0.0.0

gotchaUglify's 'negate_iife' compress option should be false to avoid conflicting with optimize-js's work.

fix

Set uglify compress option 'negate_iife: false'.

affects: >=0.0.0

Errors

Common errors & fixes

Error: Could not resolve 'rollup-plugin-optimize-js'

Package not installed or not in node_modules.

fix

Run 'npm install rollup-plugin-optimize-js --save-dev' and ensure it's in your dependencies.

TypeError: optimizeJs is not a function

Importing incorrectly, e.g., using default import on CJS that expects named export.

fix

Use 'const optimizeJs = require('rollup-plugin-optimize-js');' in CommonJS, or 'import optimizeJs from 'rollup-plugin-optimize-js';' in ES6.

Error: The transformBundle hook used by plugin optimize-js is deprecated

Using Rollup 1.x+ where transformBundle was removed.

fix

Downgrade Rollup to 0.x or use a different plugin that supports Rollup 1.x+.

Upgrade

Version history

0.0.4latest on npm

Audit

Dependencies

optimize-jsrequiredCore optimization library that this plugin wraps.

rolluprequiredPeer dependency; plugin is designed for Rollup bundler.

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/ezekielchentnik/rollup-plugin-optimize-js ↗

packagehttps://www.npmjs.com/package/rollup-plugin-optimize-js ↗