JSPM

Test if two arguments have the same native class.

Python built-in functions, classes and (some) modules ported to JavaScript with no dependencies and web compatibility

Test whether a string matches a Node.js built-in module name.

A JavaScript function for determining if child elements are loaded.

Intrinsic

JavaScript built-in functions rewritten to understand generators

A small library for basic built-in promise utility functions

Setup any element as if it was a Custom Element

Alias for Node.js built-in 'node:buffer' module

Built-in web components for all elements.

Reactive versions of Map and Set

JavaScript standard library extensions

Improve built-in data types functionality

Enables attaching ES6 proxies onto other Shadow DOM peer citizens

Cache templates contained within templates.

A utility function to swap any two values, including primitives, objects, arrays, maps, sets, typed arrays, and other built-in JavaScript types.

Allow microdata elements and host properties to be combined together (interpolated).