AngularJs Truncate filter

Truncate.js

/*jshint bitwise:true, camelcase:true, curly:true, eqeqeq:true, forin:true, latedef:true, newcap:true, noarg:true,
 noempty:true, nonew:true, undef:true, unused:true, strict:true, browser:true, camelcase:false */

/*globals
String: false
 */

/*exported
 TruncateFilter
 */
var TruncateFilter = function () {
    'use strict';

    return function (text, length, end) {
        length = length || 55;
        end = end || '...';
        text = text || '';

        if (text.length <= length || text.length - end.length <= length) {
            return text;

        } else {
            text = String(text).substring(0, length - end.length) + end;
        }

        return text;
    };
};