An assortment of extensions to TypeScript core types Number, String, Array, Set, and other types to drastically improve DX in everyday operations. Inspired by Swift.

Some utilities to js

Typesafe API for processing iterable data in TypeScript and JavaScript.

Set operations on human-friendly ranges.

A set that keeps the frequency of occurrences.

An ECMAScript module to list permutations or combinations from the collection or set.

A JavaScript implementation of Bubble Sets.

A TypeScript utility library focused on deep operations for objects and arrays with full type safety. Similar to Lodash, but narrower in scope and fully written in TypeScript to maximize typing support.

0️⃣ JavaScript's keyed collections (Map & Set) with SameValue semantics!

🔑 Get the same key for the same sequence of values!

A javascript standard data structure library which benchmark against C++ STL.

A Set implementation that supports Objects and custom uniqueness logic.

Gets a value for a given key in a map, setting the fallback value if it doesn't exist.

Extended Javascript Map and Set implementations that support deep object equality

The bit is a basic unit of information in information theory, computing.

A pack of functions for working with Sets.

TypeScript enums replacement which helps type narrowing.

A WeakSet that supports any value, it holds strong references to primitives, and weak references to objects.

A Set that doesn't throw if you put more than 16 million items in it. Because that's what the native `Set` object does for some reason.

Make enums more intuitive with immutable `Set` and `Map` interfaces!