Create Initials From String Filter

initials.js

  .filter('initials', function () {
    var initialsFilter  = function(input) {
      if (input) {
        var wordArr = input.split(' ');
        var initials = wordArr.map(function(item) {
          return item.substring(0,1).toUpperCase();
        });
        return initials.join('.');
      }
    };

    return initialsFilter;
  });