Is this value negative zero? === will lie to you

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

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

Determine if a function is a native async function.

Is this value an ES BigInt?

A pure JS implementation SHA256.

Is this value a JS DataView? This module works cross-realm/iframe, does not depend on `instanceof` or mutable properties, and despite ES6 Symbol.toStringTag.

Standard library

Get the byteOffset out of a DataView, robustly.

A package for rapid backend development, providing CRUD API generation with customizable schema support for MongoDB and PostgreSQL.

Get the byteLength out of a DataView, robustly.

core-js compat

Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent & Client Hints data. Supports browser & node.js environment

string representations of objects in node and the browser

Get the ArrayBuffer out of a DataView, robustly.

This plugin adds `TypeScript` support to `eslint-plugin-import`

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

Parses CSS inline style to JavaScript object (camelCased).

Immutable Data Collections

## Installation