TypeScript.NET/source/System.Linq at master · electricessence/TypeScript.NET

Exported in this module is the Enumerable class which contains all available LINQ methods you would expect.

Because the notion of 'extensions' in JavaScript is not as simple and elegant as C#, it was important to allow for flexibility of use.

Usage

Enumerable.from(source) will return an Enumerable wrapper for LINQ access to the source.

Source values that work:

Any object which has a .getEnumerator() method attached to it. See IEnumerator in System/Collections/Enumerable.
Arrays or objects analogous to arrays (have a .length property and index by number).

TypeScript or ES6

import Enumerable from 'typescript-dotnet-es6/System.Linq/Linq';
 
let sourceData = ['a','b','c','c','d'];
 
let myEnumerable = Enumerable.from(sourceData);

console.log(
	myEnumerable.count(x=>x=='c'), // 2
	myEnumerable.any(x=>x=='e'), // false
);

JavaScript (requirejs, ES5)

require('[path or alias to package root]/System.Linq/Linq',function(Enumerable){
	 
	var sourceData = ['a','b','c','c','d'];
	 
	var myEnumerable = Enumerable.from(sourceData);
	
	console.log(
		myEnumerable.count(function(x){return x=='c'}), // 2
		myEnumerable.any(function(x){return x=='e'}), // false
	);
});

JavaScript (NodeJS, ES5)

var Enumerable = require('typescript-dotnet-commonjs/System.Linq/Linq');
	 
var sourceData = ['a','b','c','c','d'];
 
var myEnumerable = Enumerable.from(sourceData);

console.log(
	myEnumerable.count(function(x){return x=='c'}), // 2
	myEnumerable.any(function(x){return x=='e'}), // false
);