Function map

MathBox/mathbox-bundle.js:38634–38651

* Creates an array of values by running each element in the collection * through the callback. The callback is bound to `thisArg` and invoked with * three arguments; (value, index|key, collection). * * If a property name is provided for `callback` the created "_.pluck" style

(collection, callback, thisArg)

     * // => ['barney', 'fred']
     */
    function map(collection, callback, thisArg) {
      var index = -1,
          length = collection ? collection.length : 0;

      callback = lodash.createCallback(callback, thisArg, 3);
      if (typeof length == 'number') {
        var result = Array(length);
        while (++index < length) {
          result[index] = callback(collection[index], index, collection);
        }
      } else {
        result = [];
        forOwn(collection, function(value, key, collection) {
          result[++index] = callback(value, key, collection);
        });
      }
      return result;
    }

    /**
     * Retrieves the maximum value of a collection. If the collection is empty or