Unified, tree-shakeable wrapper over MutationObserver, ResizeObserver, IntersectionObserver, PerformanceObserver and ReportingObserver. A typed, zero-dependency replacement for arrive.js-style polling hacks.

An ES2019 spec-compliant `Array.prototype.flatMap` shim/polyfill/replacement that works as far down as ES3.

An ESnext spec-compliant `Array.prototype.findLast` shim/polyfill/replacement that works as far down as ES3.

An ESnext spec-compliant `Array.prototype.findLastIndex` shim/polyfill/replacement that works as far down as ES3.

An ES2015 mostly-spec-compliant `Reflect.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible

An ES2019 spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.

An ES7/ES2016 spec-compliant `Array.prototype.includes` shim/polyfill/replacement that works as far down as ES3.

Native-ESM powered web dev build tool

An ESnext spec-compliant `Array.prototype.toSorted` shim/polyfill/replacement that works as far down as ES3.

Replace all substring matches in a string

An ES5 spec-compliant `Array.prototype.reduce` shim/polyfill/replacement that works as far down as ES3.

Convert a string to a valid safe filename

JSON parse with prototype poisoning protection

Replace user home in a string with another string. Useful for tildifying a path.

An ES5 spec-compliant `Array.prototype.map` shim/polyfill/replacement that works as far down as ES3.

This package extends `expect` library with `jest-snapshot` matchers. It exports `jestExpect` object, which can be used as standalone replacement of `expect`.

A simple utility to quickly replace text in one or more files.

Easily add ANSI colors to your text and symbols in the terminal. A faster drop-in replacement for chalk, kleur and turbocolor (without the dependencies and rendering bugs).

Slugifies a String

Replace matches in a Buffer