underscore js

var qrcode = new QRCode("test", {
    text: "http://jindo.dev.naver.com/collie",
    width: 128,
    height: 128,
    colorDark : "#000000",
    colorLight : "#ffffff",
    correctLevel : QRCode.CorrectLevel.H
});
var evens = _.filter([1, 2, 3, 4, 5, 6], function(num){ return num % 2 == 0; });
=> [2, 4, 6]
_.reduce(['x', 'y', 'z'], function(accumulator, currentItem) {
    return accumulator + currentItem;
});
// xyzvar stooge = {name: 'moe'};
_.propertyOf(stooge)('name');
=> 'moe'