Keyed observable array
Control Flow primitives and components that require specifying explicit keys to identify or rerender elements.
Flattens React children and fragments to an array with predictable and stable keys
a map from arrays of values to values
Provides an enum of all possible VNode Flags used when calling Inferno.createVNode
Full BCP 47 language subtag data from the official IANA repository, in JSON format with multiple indices.
Parse HTTP request cookies
Unicode CLDR pluralization rules as JavaScript functions
A powerful writable derived store for Svelte that enables deep object and array manipulation with TypeScript support
A debugging tool

Array manipulation, ordering, searching, summarizing, etc.
HTML Utiltities
Lightweight library to store an in-memory DB
A simple list of possible Typed Array names.
Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
Is this value a JS ArrayBuffer?
Get the byte length of an ArrayBuffer, even in engines without a `.byteLength` method.
An ES7/ES2016 spec-compliant `Array.prototype.includes` shim/polyfill/replacement that works as far down as ES3.
POC for Sanity Design Tokens
Robustly get the length of a Typed Array
Robustly get the byte offset of a Typed Array
`Array.prototype.concat`, but made safe by ignoring Symbol.isConcatSpreadable
Is this value a JS SharedArrayBuffer?