lodash/internal/pickByCallback.js

define(['./baseForIn'], function(baseForIn) {

  /**
   * A specialized version of `_.pick` that picks `object` properties `predicate`
   * returns truthy for.
   *
   * @private
   * @param {Object} object The source object.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {Object} Returns the new object.
   */
  function pickByCallback(object, predicate) {
    var result = {};
    baseForIn(object, function(value, key, object) {
      if (predicate(value, key, object)) {
        result[key] = value;
      }
    });
    return result;
  }

  return pickByCallback;
});