Angular Characters Filters

characters.js

angular.module('app').filter('characters', function () {
  return function(input, chars) {
    if (isNaN(chars)) return input;
    if (chars <= 0) return '';
    if(input && input.length >= chars) {
      input = input.substring(0, chars);
      var lastspace = input.lastIndexOf(' ');
      //get last space
      if (lastspace !== -1) {
        input = input.substr(0, lastspace);
      }
      return input + '...';
    }
    return input;
  };
});