node/tools/eslint/node_modules/lodash._pickbycallback/index.js

/**
 * lodash 3.0.0 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.7.0 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
var baseFor = require('lodash._basefor'),
    keysIn = require('lodash.keysin');

/**
 * The base implementation of `_.forIn` without support for callback
 * shorthands and `this` binding.
 *
 * @private
 * @param {Object} object The object to iterate over.
 * @param {Function} iteratee The function invoked per iteration.
 * @returns {Object} Returns `object`.
 */
function baseForIn(object, iteratee) {
  return baseFor(object, iteratee, keysIn);
}

/**
 * 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;
}

module.exports = pickByCallback;