1、问题背景
AngularJS利用ng-if指令来判断对象元素是否为空
2、实现源码
<!DOCTYPE html>
<html ng-app="ifApp">
<head>
<meta charset="UTF-8">
<title>AngularJS之ng-if指令</title>
<script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script>
<script>
var app = angular.module("ifApp",[]);
app.controller("ifController",function($scope){
$scope.person = {
name:{
username:"张三",
sex:"男",
age:"23"
},
scores:{
item:"语文",score:"123"
}
};
});
</script>
</head>
<body ng-controller="ifController">
<div ng-if="person != null">
<div ng-repeat="p in person">
<div ng-if="person.name != null">
<label>{{p.username}}</label>
</div>
</div>
</div>
</body>
</html>
3、实现结果
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