ECMAScript spec-compliant polyfill/shim for `globalThis`
Robustly get the byte offset of a Typed Array
Is this value a JS Map? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent & Client Hints data. Supports browser & node.js environment
Express style path to RegExp utility
Which kind of boxed JS primitive is this?
A lightweight cache for file metadata, ideal for processes that work on a specific set of files and only need to reprocess files that have changed since the last run
Is this an arguments object? It's a harder question than you think.
Get the byteOffset out of a DataView, robustly.
TypeScript-first schema declaration and validation library with static type inference
What is the type of this builtin JS value?
An ES2015 spec-compliant `Function.prototype.name` shim
micromark factory to parse destinations (found in resources, definitions)
Modern and scalable routing for React applications
Types for the AWS SDK
A helper to optimistically set Symbol.toStringTag, when possible.
Determine if a function is a native async function.
The ultimate javascript content-type utility.
unist utility to recursively walk over nodes, with ancestral information
Make a callback- or promise-based function support both promises and callbacks.
A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations
Robustly get the byte length of a Typed Array
Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`
Fast, disk space efficient package manager