enumerable-js

A TypeScript based LINQ implementation with deferred execution.

License: MIT

Installation

npm install @wesleythorsen/enumerable-js

Quick Start

Create an Enumerable:

import { Enumerable } from "@wesleythorsen/enumerable-js"

const cities = [
  { name: "New York", population: 8_335_897, climate: "cold" },
  { name: "Los Angeles", population: 3_822_238, climate: "warm" },
  { name: "Seattle", population: 749_256, climate: "cold" },
  { name: "San Diego", population: 1_381_162, climate: "warm" },
];

let largestWarmCity = Enumerable.from(cities)
  .where(c => c.climate === "warm") // alias for .filter()
  .maxBy(c => c.population);

Implemented Methods:

• all
• any
• append
• batch
• concat
• count
• distinct
• distinctBy
• empty
• filter
• first
• firstBy
• firstOrDefault
• firstOrDefaultBy
• groupBy
• intersect
• intersectBy
• map
• max
• maxBy
• min
• minBy
• range
• repeat
• select (alias to map)
• skip
• take
• toArray
• toLookup
• toMap
• toSet
• union
• unionBy
• where (alias to filter)

Support

If you would like to add unimplemented LINQ methods please create a PR. If you find any bug, please use the issues tracker. I'll be happy to help you!