AngularJS自定义过滤器用法经典实例总结

更新时间：2020-07-09 14:18:01 作者：startmvc

本文实例讲述了AngularJS自定义过滤器用法。分享给大家供大家参考，具体如下：过滤器结构

本文实例讲述了AngularJS自定义过滤器用法。分享给大家供大家参考，具体如下：

过滤器结构


{{带过滤数据 | 过滤器名：参数1：参数2：参数3.....}}
app.filter('过滤器名', function () {
 return function (待过滤数据, 参数....) {
 ......
 return 已过滤数据;
 }

示例一：是否包含


<!doctype html>
<html ng-app="myApp">
<head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
 <script src="http://apps.bdimg.com/libs/angular.js/1.2.16/angular.min.js"></script>
</head>
<body>
<div ng-controller="myAppCtrl">
 <div>
 <table>
 <tr>
 <th>Name</th>
 <th>Phone</th>
 </tr>
 <!--写法1-->
 <tr ng-repeat="friend in friends |myfilter">
 <!--写法2-->
<!--<tr ng-repeat="friend in newArr=(friends | myfilter)">-->
 <td>{{friend.name}}</td>
 <td>{{friend.phone}}</td>
 </tr>
 </table>
 </div>
</div>
<script type="text/javascript">
 var app = angular.module("myApp", []);
 app.controller("myAppCtrl", ["$scope", function ($scope) {
 $scope.friends = [{name: 'John', phone: '44555-1276'},
 {name: 'Annie', phone: '800-BIG-MARY'},
 {name: 'Mike', phone: '11555-4321'},
 {name: 'Adam', phone: '33555-5678'},
 {name: 'David', phone: '387555-8765'},
 {name: 'Mikay', phone: '555-5678'}];
 }]);
 app.filter("myfilter", function () {
 return function (input) {
 var output = [];
 angular.forEach(input, function (value, key) {
 console.log("value==" + JSON.stringify(value));
 console.log("value.phone类型==" + typeof (value.phone));
 console.log("value.phone.indexOf==" + value.phone.indexOf("555"));
 /*js中没有contains方法，使用indexOf来判断字符串是否包含*/
 /*indexOf字符串出现的位置，没有则返回-1*/
 //方法一：
 if (value.phone.indexOf("555") >= 0) {
 output.push(value);
 }
 //方法二：
// if (value.phone.indexOf("555") !== -1) {
// output.push(value);
// }
 });
 return output;
 }
 });
</script>
</body>
</html>

示例二：倒序


<!doctype html>
<html ng-app="myApp">
<head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
 <script src="http://apps.bdimg.com/libs/angular.js/1.2.16/angular.min.js"></script>
</head>
<body>
<div ng-controller="myAppCtrl">
 姓名:{{ name }}<br>
 倒序:{{ name | reverse }}<br>
 倒序并大写:{{ name | reverse:true }}
</div>
<script type="text/javascript">
 var myAppModule = angular.module("myApp", []);
 myAppModule.controller("myAppCtrl", ["$scope", function ($scope) {
 $scope.name = "xuqiang";
 }]);
 myAppModule.filter("reverse", function () {
 return function (input, uppercase) {
 <!--input就是其中name代表的值。-->
 <!--uppercase这个bool值，判断是否要进行大小写转换。-->
 var out = "";
 for (var i = 0; i < input.length; i++) {
 out = input.charAt(i) + out;
 }
 if (uppercase) {
 out = out.toUpperCase();
 }
 return out;
 <!--返回过滤后的字符串-->
 }
 });
</script>
</body>
</html>

示例三：替换


<!doctype html>
<html ng-app="myApp">
<head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
 <script src="http://apps.bdimg.com/libs/angular.js/1.2.16/angular.min.js"></script>
</head>
<body ng-controller="myAppCtrl">
<div>
 <div>
 {{welcome | replaceHello}}<br/>
 {{welcome | replaceHello:3:5}}<br/>
 </div>
</div>
<script type="text/javascript">
 var app = angular.module("myApp", []);
 app.controller("myAppCtrl", ["$scope", function ($scope) {
 $scope.welcome = "Hello AngularJs";
 }]);
 //自定义过滤器
 app.filter('replaceHello', function () {
 return function (input, n1, n2) {
 console.log("input==" + input);
 console.log("n1==" + n1);
 console.log("n2==" + n2);
 return input.replace(/Hello/, '您好');
 }
 });
</script>
</body>
</html>

示例四：筛选


<!doctype html>
<html ng-app="a3_3">
<head>
 <title>自定义过滤器</title>
 <script src="../Script/angular.min.js"
 type="text/javascript"></script>
 <style type="text/css">
 body {
 font-size: 12px;
 }
 ul {
 list-style-type: none;
 width: 408px;
 margin: 0px;
 padding: 0px;
 }
 ul li {
 float: left;
 padding: 5px 0px;
 }
 ul .odd {
 color: #0026ff;
 }
 ul .even {
 color: #ff0000;
 }
 ul .bold {
 font-weight: bold;
 }
 ul li span {
 width: 52px;
 float: left;
 padding: 0px 10px;
 }
 ul .focus {
 background-color: #cccccc;
 }
 </style>
</head>
<body>
<div ng-controller="c3_3">
 <ul>
 <li ng-class="{{bold}}">
 <span>序号</span>
 <span>姓名</span>
 <span>性别</span>
 <span>年龄</span>
 <span>分数</span>
 </li>
 <li ng-repeat=" stu in data | young:0"
 ng-class-odd="'odd'"
 ng-class-even="'even'">
 <span>{{$index+1}}</span>
 <span>{{stu.name}}</span>
 <span>{{stu.sex}}</span>
 <span>{{stu.age}}</span>
 <span>{{stu.score}}</span>
 </li>
 </ul>
</div>
<script type="text/javascript">
 var a3_3 = angular.module('a3_3', []);
 a3_3.controller('c3_3', ['$scope', function ($scope) {
 $scope.bold = "bold";
 $scope.data = [
 {name: "张明明", sex: "女", age: 24, score: 95},
 {name: "李清思", sex: "女", age: 27, score: 87},
 {name: "刘小华", sex: "男", age: 28, score: 86},
 {name: "陈忠忠", sex: "男", age: 23, score: 97}
 ];
 }]);
 a3_3.filter('young', function () {
 return function (e, type) {
 var _out = [];
 var _sex = type ? "男" : "女";
 for (var i = 0; i < e.length; i++) {
 if (e[i].age > 22 && e[i].age < 28 &&
 e[i].sex == _sex)
 _out.push(e[i]);
 }
 return _out;
 }
 });
</script>
</body>
</html>

示例五：排序


<!doctype html>
<html ng-app="a3_4">
<head>
 <title>表头排序</title>
 <script src="../Script/angular.min.js"
 type="text/javascript"></script>
 <style type="text/css">
 body {
 font-size: 12px;
 }
 ul {
 list-style-type: none;
 width: 408px;
 margin: 0px;
 padding: 0px;
 }
 ul li {
 float: left;
 padding: 5px 0px;
 }
 ul .bold {
 font-weight: bold;
 cursor: pointer;
 }
 ul li span {
 width: 52px;
 float: left;
 padding: 0px 10px;
 }
 ul .focus {
 background-color: #cccccc;
 }
 </style>
</head>
<body>
<div ng-controller="c3_4">
 <ul>
 <li ng-class="{{bold}}">
 <span>序号</span>
 <span ng-click="title='name';desc=!desc">
 姓名
 </span>
 <span ng-click="title='sex';desc=!desc">
 性别
 </span>
 <span ng-click="title='age';desc=!desc">
 年龄
 </span>
 <span ng-click="title='score';desc=!desc">
 分数
 </span>
 </li>
 <li ng-repeat=" stu in data | orderBy : title : desc">
 <!--title：属性值，desc：升序or降序-->
 <span>{{$index+1}}</span>
 <span>{{stu.name}}</span>
 <span>{{stu.sex}}</span>
 <span>{{stu.age}}</span>
 <span>{{stu.score}}</span>
 </li>
 </ul>
</div>
<script type="text/javascript">
 var a3_4 = angular.module('a3_4', []);
 a3_4.controller('c3_4', ['$scope', function ($scope) {
 $scope.bold = "bold";
 $scope.title = 'name';
 $scope.desc = 0;
 $scope.data = [
 {name: "张明明", sex: "女", age: 24, score: 95},
 {name: "李清思", sex: "女", age: 27, score: 87},
 {name: "刘小华", sex: "男", age: 28, score: 86},
 {name: "陈忠忠", sex: "男", age: 23, score: 97}
 ];
 }])
</script>
</body>
</html>

示例六：输入过滤


<!doctype html>
<html ng-app="a3_5">
<head>
 <title>字符查找</title>
 <script src="../Script/angular.min.js"
 type="text/javascript"></script>
 <style type="text/css">
 body {
 font-size: 12px;
 }
 ul {
 list-style-type: none;
 width: 408px;
 margin: 0px;
 padding: 0px;
 }
 ul li {
 float: left;
 padding: 5px 0px;
 }
 ul .bold {
 font-weight: bold;
 cursor: pointer;
 }
 ul li span {
 width: 52px;
 float: left;
 padding: 0px 10px;
 }
 ul .focus {
 background-color: #cccccc;
 }
 </style>
</head>
<body>
<div ng-controller="c3_5">
 <div>
 <input id="txtkey" type="text"
 ng-model="key" placeholder="请输入姓名关键字"/>
 </div>
 <ul>
 <li ng-class="{{bold}}">
 <span>序号</span>
 <span>姓名</span>
 <span>性别</span>
 <span>年龄</span>
 <span>分数</span>
 </li>
 <li ng-repeat=" stu in data | filter : {name:key}">
 <span>{{$index+1}}</span>
 <span>{{stu.name}}</span>
 <span>{{stu.sex}}</span>
 <span>{{stu.age}}</span>
 <span>{{stu.score}}</span>
 </li>
 </ul>
</div>
<script type="text/javascript">
 var a3_5 = angular.module('a3_5', []);
 a3_5.controller('c3_5', ['$scope', function ($scope) {
 $scope.bold = "bold";
 $scope.key = '';
 $scope.data = [
 {name: "张明明", sex: "女", age: 24, score: 95},
 {name: "李清思", sex: "女", age: 27, score: 87},
 {name: "刘小华", sex: "男", age: 28, score: 86},
 {name: "陈忠忠", sex: "男", age: 23, score: 97}
 ];
 }])
</script>
</body>
</html>

参考：

【angularjs实战】