angular-filter/src/_filter/collection/before.js

Bunch of useful filters for angularJS(with no external dependencies!)

/**
 * @ngdoc filter
 * @name before
 * @kind function
 *
 * @description
 * get a collection and specified count, and returns all of the items
 * in the collection before the specified count.
 */
angular.module('a8m.before', [])
    .filter('before', function() {
      return function (collection, count) {
        collection = isObject(collection)
          ? toArray(collection)
          : collection;

        return (isArray(collection))
          ? collection.slice(0, (!count) ? count : --count)
          : collection;
      }
    });