angularjs如何在ng-repeat过程中控制字符串长度超过指定长度后面内容以省略号显示

 angular.module('ng').filter('cut', function () {
   return function (value, wordwise, max, tail) {
     if (!value) return '';

     max = parseInt(max, 10);
     if (!max) return value;
     if (value.length <= max) return value;

     value = value.substr(0, max);
     if (wordwise) {
       var lastspace = value.lastIndexOf(' ');
       if (lastspace != -1) {
         value = value.substr(0, lastspace);
       }
     }

     return value + (tail || ' …');
   };
 });

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