http://samueleresca.net/2015/06/linq-js-linq-for-javascript/

linqjs_demo\demo.js

//REPO
var objArray = [
    {id: 1, description: "Cuba libre", price: 6.00},
    {id: 2,description: "Beer",price: 3.50},
    {id: 3, description: "Vodka Lemon", price: 5.00},
    {id: 4, description: "Long island", price: 5.50},
    {id: 5, description: "Caipiroska", price: 7.50}
]


//SIMPLE QUERY
var testResult1= Enumerable.From(objArray)
    .Where(function (x) { return x.price >= 5.00 })
.Select(function (x) { return x.description }).ToArray();
//TEST
QUnit.test("Test Where() and Select()", function (assert) {
    assert.ok(testResult1[0] == "Cuba libre", "Passed!: value " + testResult1[0]);
});

//LAMBDA EXP
var testResult2 = Enumerable.From(objArray)
    .Where("$.price >= 5.00")
.Select("$.description").ToArray();
//TEST
QUnit.test("Test Where() and Select() using LAMBDA selector", function (assert) {
    assert.ok(testResult2[0] == "Cuba libre", "Passed! value " + testResult2[0]);
});


//LAMBDA EXP ORDER BY
var testResult3 = Enumerable.From(objArray)
    .Where("$.price >= 5.00")
    .OrderBy("$.price")
.Select(function (x) {
    return { description: x.description, price: x.price }
}).ToArray();
//TEST
QUnit.test("Test ORDERBY() using LAMBDA selector", function (assert) {
    assert.ok(testResult3[0].description == "Vodka Lemon", "Passed! value " + testResult3[0].description);
});