Cloning the object in JavaScript

This question already has an answer here:

What is the most efficient way to deep clone an object in JavaScript? 57 answers

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The simplest way to clone an object is using the following function:

function clone(a){var b=function(){};b.prototype=a;return new b;}

This creates a basic copy of the object, do note though that this does not create a deep copy, only a shallow one.

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试试这与jQuery：

var parent = {};
                parent["Task name"] = "Task " + ++x;
                parent["Start time"] = "01/03/2013";
                parent["End time"] = "01/08/2013";
                parent["Duration"] = "5 days";
                parent["Status"] = Math.round(Math.random() * 100);
var newObj = jQuery.extend(true, {}, parent);

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The most basic way is as follows :

var clone = {};
for (var k in parent) {
    clone[k] = parent[k];
}

Works in this case since all values are of primitive types.

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