angularjs自定义过滤器demo示例

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

这个基于angularjs的过滤器是最近做的"信息管理学院实验室预约"项目中的一个小功能。

以下为数据:

$scope['classes']=[{id:1,name:"H503",capacity:40,software:"photoshop,金蝶,AI",freeTime:"周一1-2-3,周五1-2-3,周一5-6,"},
   {id:2,name:"H504",capacity:50,software:"chrome,金蝶,office,"
   ,freeTime:"周二1-2-3,周三3-4,周一5-6,"},
   {id:3,name:"H505",capacity:60,software:"chrome,LOL,office,"
   ,freeTime:"周二1-2-3,周三3-4,周四7-8,"}
];

具体功能:

分别在两个select选择星期和课次，列表会即时根据条件更新。

完整代码:

<!DOCTYPE html>
<html ng-app="myApp" >
<head>
<meta charset="utf-8">
<script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script>
</head>
<body>
<div ng-controller="myCtrl">
 <select ng-model="day">
  <option selected="">周一</option>
  <option>周二</option>
  <option>周三</option>
  <option>周四</option>
  <option>周五</option>
 </select>
  <select ng-model="order">
  <option selected="">1-2</option>
  <option>1-2-3</option>
  <option>3-4</option>
  <option>1-2-3-4</option>
  <option>5-6</option>
  <option>7-8</option>
  </select>
  <ul>
   <li ng-repeat="class in classes | myFiter:day:order">
     <span>{{class.id}}</span>
     <span>{{class.name}}</span>
      <span>{{class.capacity}}</span>
      <span>{{class.software}}</span>
   </li>
  </ul>
 </select>
</div>
<script type="text/javascript">
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
 //假数据
  $scope['classes']=[{id:1,name:"H503",capacity:40,software:"photoshop,金蝶，AI",freeTime:"周一1-2-3,周五1-2-3,周一5-6,"},
   {id:2,name:"H504",capacity:50,software:"chrome,金蝶,office,"
   ,freeTime:"周二1-2-3,周三3-4,周一5-6,"},
   {id:3,name:"H505",capacity:60,software:"chrome,LOL,office,"
   ,freeTime:"周二1-2-3,周三3-4,周四7-8,"}
  ];
  //select的默认值
  $scope.order="1-2";
  $scope.day="周一";
});
//自定义过滤器
app.filter('myFiter',function()
{
 return function(input,day,order)
 {
   var time=day+order;
   var output=[];
   for(var i=0;i<input.length;i++)
   {
   var n=input[i].freeTime.indexOf(time);
   // console.log(n);
   // console.log(input[i].freeTime.charAt(n+time.length));
    if(n!=-1)//如果能找到
    {
     if(input[i].freeTime.charAt(n+time.length)==',')
     //这样做是为了防止1-2与1-2-3是一样的结果
      output.push(input[i]);
    }
   }
   return output;
 }
})
</script>
</body>
</html>

运行效果：