Here you can find the source of jsonFormat(obj)
var _ = require('underscore'); var data = [//ww w . j ava 2s.c o m { name: "a", value: "1" }, { name: "b", value: "2" }, { name: "c", value: "3" }, { name: "d", value: "4" }, { name: "e", value: "5" } ]; Array.prototype.jsonFormat = function (obj) { obj = obj || {}; _.map(this, function (item) { return obj[item.name] = item.value; }); return obj; }; console.log(data.jsonFormat());