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- export function deepExtend (){
- var obj1 = arguments[0];
- var obj2 = arguments[1];
- //存放结果对象
- var resObj = {};
- if(typeof(obj1) != 'object' || typeof(obj2) != 'object'){
- console.warn('Not object');
- return
- }
- //遍历obj1的所有属性
- for(var i in obj1){
- //如果对象2里面有对象1的这个属性则继承过来,否则resObj放obj1[i]
- if(obj2.hasOwnProperty(i)){
- if(typeof(obj1[i]) == 'object'){
- //如果obj1[i]是一个对象,那么递归调用这个方法,并把resObj[i]的属性设置为结果
- resObj[i] = deepExtend(obj1[i],obj2[i])
- }else{
- resObj[i] = obj2[i];
- }
- }else{
- resObj[i] = obj1[i];
- }
- }
- for(var j in obj2){
- //上一步已经把obj1和obj2共有的属性全替换为obj2的属性,所以这里只需把obj1里不具有的obj2的属性复制即可
- if(!obj1.hasOwnProperty(j)){
- resObj[j] = obj2[j];
- }
- }
- return resObj
- }
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