angularjs如何在ng-repeat過程當中控制字符串長度超過指定長度後面內容以省略號顯示

 1 angular.module('ng').filter('cut', function () {
 2   return function (value, wordwise, max, tail) {
 3     if (!value) return '';
 4 
 5     max = parseInt(max, 10);
 6     if (!max) return value;
 7     if (value.length <= max) return value;
 8 
 9     value = value.substr(0, max);
10     if (wordwise) {
11       var lastspace = value.lastIndexOf(' ');
12       if (lastspace != -1) {
13         value = value.substr(0, lastspace);
14       }
15     }
16 
17     return value + (tail || ' …');
18   };
19 });

使用方式：{{some_text | cut:true:100:' ...'}}