#javascript

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

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

IP2Location Node.js Module - Knowing where your visitors from.

JavaScript API stubs for JobRouter®

a list of SPDX license identifiers

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

Set a function's length property

datetime handling for gleam

WebGL protein viewer

Node.js final http responder

Symfony polyfill for ctype functions

Symfony polyfill for the deepclone extension

Symfony polyfill for the Iconv extension

Symfony polyfill for intl's Normalizer class and related functions

Symfony polyfill backporting some PHP 8.1+ features to lower PHP versions

A high-performance, pure Rust toolkit for standardizing and preparing biomolecular systems (proteins & nucleic acids). It heals missing atoms, resolves protonation states, adds solvation, and unifies topologies to forge simulation-ready structures.

DXF 2D viewer written in JavaScript

Dependency-free CircuitJSON parsing, validation, indexing, and utility helpers

No repository description published.

ECMAScript AST query library.

Highly customizable notification snackbars (toasts) that can be stacked on top of each other

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

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

Compressible Content-Type / mime checking.

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

The quality ratchet for TS/JS: 9 zero-config gates against a versioned baseline — quality can only improve, never regress.

If you use globs, this will make your code faster. Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a better user experience. 55+ million downloads.

Symfony polyfill backporting some PHP 7.3+ features to lower PHP versions

Symfony polyfill backporting some PHP 8.6+ features to lower PHP versions

Symfony polyfill for uuid functions