前端

AngularJS之ng-if指令

云博小周宇1 Min Read

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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