Native js achieves copying objects, extension objects are similar to the extend () method in jquery, jqueryextend

Native js achieves copying objects, extension objects are similar to the extend () method in jquery, jqueryextend

The extend () method of jq can easily implement the extension object method. The syntax is as follows: $. extend (obj1, boj2, obj3 );

What we need to implement now is: Native js implements copying objects and extension objects, similar to the extend () method in jq. The specific example is as follows:
There are three objects:

var o1={hello:1,old:555},o2 = {abc: 55555555,hello: 2,fun: function() {alert(111);}},o3={third:9999};

Goals:

Copy the o1 object and extend the properties and methods of the o2 and o3 objects to the copied objects and output them.

<Script> var o1 = {hello: 1, old: 555}, o2 = {abc: 55555555, hello: 2, fun: function () {alert (111) ;}}, o3 = {third: 9999}; function cloneObj (oldObj) {// copy object method if (typeof (oldObj )! = 'Object') return oldObj; if (oldObj = null) return oldObj; var newObj = new object (); for (var I in oldObj) newObj [I] = cloneObj (oldObj [I]); return newObj;}; function extendObj () {// extension object var args = arguments; if (args. length <2) return; var temp = cloneObj (args [0]); // call the copy object method for (var n = 1; n <args. length; n ++) {for (var I in args [n]) {temp [I] = args [n] [I] ;}} return temp ;} var t = extendObj (o1, o2, o3); console. log (t); console. log (o1); console. log (o2); console. log (o3); </script>

How to accept js objects and jquery?

Var aa = $ ("# mm"). get (0); // convert the jquery object to a js object
Var bb = $ (aa); // convert a js object to a jquery object

How to convert an object to a value in js or jquery

Jquery can set ype. If it is text, parseInt (data). If it is json, parseInt (data. abc)