Kivach - zloirock/core-js | Standard Library

Core-js is a modular standard library for JavaScript, providing polyfills for ECMAScript features (up to 2025) and web standards. It's designed for developers who need to support older browsers or environments that lack modern JavaScript features, allowing them to use the latest syntax and functionality without compatibility issues. Core-js is highly customizable, letting you include only the features you need to minimize bundle size and avoid polluting the global namespace.

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Babel compiler core.

Compile ES2015 arrow functions to ES5

Babel plugin to ensure function declarations at the block level are block scoped

Compile ES2015 block scoping (const and let) to ES5

Compile ES2015 classes to ES5

This plugin transforms static class properties as well as properties declared with the property initializer syntax

Transform class static blocks

Compile ES2015 computed properties to ES5

Compile ES2015 destructuring to ES5

Compile regular expressions using duplicate named groups to index-based groups.

Compile `using` and `await using` declarations to ES2015

Compile exponentiation operator to ES5

Compile ES2015 for...of to ES5

Compile ES2015 unicode string and number literals to ES5

Transforms logical assignment operators into short-circuited assignments

Ensure that reserved words are quoted in property accesses

This plugin transforms ES2015 modules to CommonJS

Transforms new.target meta property

Remove nullish coalescing operator

Remove numeric separators from Decimal, Binary, Hex and Octal literals

Compile object rest and spread to ES5

Compile ES2015 object super to ES5

Compile optional catch bindings

Transform optional chaining operators into a series of nil checks

Compile ES2015 default and rest parameters to ES5

This plugin transforms private class methods

This plugin transforms checks for a private property in an object

Ensure that reserved words are quoted in object property keys

Explode async and generator functions into a state machine.

Compile inline regular expression modifiers

Ensure that no reserved words are used.

Compile ES2015 shorthand properties to ES5

Compile ES2015 spread to ES5

Compile ES2015 template literals to ES5

Compile ES2015 Unicode regex to ES5

bcomnes/npm-run-all2

A CLI tool to run multiple npm-scripts in parallel or sequential. (Maintenance fork)

npm/node-semver

The semantic version parser used by npm.

A tool for writing better scripts

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