Define multiple non-enumerable properties at once. Uses `Object.defineProperty` when available; falls back to standard assignment in older engines.

Returns an array of Typed Array names that are available in the current environment

Determine if a function is a native generator function.

Open-source TypeScript/React library for building production-grade AI chat experiences

> 提供类github-url-to-object能力，服务腾讯工蜂

Static AST checker for accessibility rules on JSX elements.

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

Gets the description of a Symbol. Handles `Symbol()` vs `Symbol('')` properly when possible.

Does this JS environment support the `name` property on functions?

Normalize a URL

Simple HTML5 charts using the canvas element.

WHATWG URL implementation for JavaScript

Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.

micromark extension to support GFM (GitHub Flavored Markdown)

ES proposal-spec-compliant Object.fromEntries shim.

Helper package to shim a method into `Array.prototype[Symbol.unscopables]`

Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.

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

An implementation of the URL Living Standard

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