深度克隆

原生JS实现

var obj = {
name : "abc",
age :123,
card : ['visa','master'],
wife : {
name : 'bcd',
son : {
name : "aaa"
}
}
}
var obj1 = {};
function deepClone(orign,target){
	var tSr = Object.prototype.toString;
	var target = target || {};
	var arr = "[Object,Array]";
	for(var prop in orign){
if(orign.hasOwnProperty(prop)){
	if(orign[prop] !=='null' && typeof(orign[prop])=="object"){
	target[prop] = ( tSr.call(orign[prop])) ==
	arr ? [] : {};
	deepClone(orign[prop],target[prop]);
	}else{
	target[prop] = orign[prop];
	}
		}
	}
	return target;
}
deepClone(obj,obj1);

JSON实现深拷贝

var test1 = JSON.parse(JSON.stringify(test))；