Store information about any JS value in a side channel, using a linked list
ES spec-like internal slots
An ES7/ES2016 spec-compliant `Array.prototype.includes` shim/polyfill/replacement that works as far down as ES3.
Helper package to shim a method into `Array.prototype[Symbol.unscopables]`
If available, the `Object.prototype.__proto__` accessor and mutator, call-bound
ES2017 spec-compliant Object.values shim.
Define a data property on an object. Will fall back to assignment in an engine without descriptors.
Common utilities for products from Peculiar Ventures
ES spec-compliant shim for ArrayBuffer.prototype.slice
Store information about any JS value in a side channel. Uses WeakMap if available.
Store information about any JS value in a side channel, using a Map
Store information about any JS value in a side channel. Uses WeakMap if available.
PostCSS plugin for Tailwind CSS, a utility-first CSS framework for rapidly building custom user interfaces
A Jest transformer with source map support that lets you use Jest to test projects written in TypeScript
Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
parse argument options
ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.
Determine if the JS environment has BigInt support.
A simple cache for a few of the JS Error constructors.
Give a regex, get a robust predicate function that tests it against a string.
Set a function's length property
A robust, ES3 compatible, "has own property" predicate.
ES2017 spec-compliant Object.entries shim.
A helper to optimistically set Symbol.toStringTag, when possible.