object-inspect

A querystring parser that supports nesting and arrays, with a depth limit

Store information about any JS value in a side channel. Uses WeakMap if available.

Programmatic access to the ARIA specification

Programmatic access to information about the AXObject Model

Get an iterator for any JS language value. Works robustly across all environments, all versions.

Get and robustly cache all JS language-level intrinsics at first require time

ES6 spec-compliant RegExp.prototype.flags shim.

Which kind of boxed JS primitive is this?

Get the byte length of an ArrayBuffer, even in engines without a `.byteLength` method.

Robustly `.call.bind()` a function

Is this value a JS SharedArrayBuffer?

Set a function's name property

Set a function's length property

Helper functions around Function call/apply/bind, for use in `call-bind`

Is this value an ES BigInt?

Is this value a JS Map? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Is this value a JS Set? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Store information about any JS value in a side channel, using a linked list

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.

Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.

Serialize/deserialize an error into a plain object

A querystring parser that supports nesting and arrays, with a depth limit

`Object.defineProperty`, but not IE 8's broken one.

A small polyfill for Object.setprototypeof

Merge objects using their property descriptors

Really Fast Deep Clone

An optimised way to copy'ing an object. A small and simple integration

Stringify your JSON at max speed

Is this an arguments object? It's a harder question than you think.

html formatter yo! Prettify or minify html.

Check if a value is a plain object

Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.

An AST-based pattern checker for JavaScript.

A simple cache for a few of the JS Error constructors.

Get and robustly cache all JS language-level intrinsics at first require time

Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.

`Object.getOwnPropertyDescriptor`, but accounts for IE's broken implementation.

`Object.defineProperty`, but not IE 8's broken one.

Implementation of Function.prototype.bind

Robustly `.call.bind()` a function

Helper functions around Function call/apply/bind, for use in `call-bind`

Store information about any JS value in a side channel, using a Map

A robust, ES3 compatible, "has own property" predicate.

Turn JSX into React function calls