$.extend的作用是把第二個(gè)對(duì)象合并到第一個(gè)對(duì)象
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<script src="js/jquery-2.1.4.min.js"></script>
</head>
<body>
</body>
<script>
var object1 = {
apple: 0,
banana: {weight: 52, price: 100},
cherry: 97
};
var object2 = {
banana: {price: 200},
durian: 100
};
$.extend(object1,object2);
console.log(object1);
document.write(object1);
</script>
</html>
沒(méi)有ture是淺層復(fù)制，結(jié)果是
捕2獲.JPG
如果有true是深層復(fù)制
捕獲.JPG
$.extend({},obj,obj)將都復(fù)制到一個(gè)空對(duì)象，就不會(huì)修改原始數(shù)據(jù)
