e-lado/node_modules0/fbjs/lib/partitionObjectByKey.js

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/**
 * Copyright 2015-present Facebook. All Rights Reserved.
 *
 * @typechecks
 * 
 */

'use strict';

var partitionObject = require('./partitionObject');

/**
 * Partitions the enumerable properties of an object into two objects, given a
 * whitelist `Set` for the first object. This is comparable to
 * `whitelistObjectKeys`, but eventually keeping all the keys. Returns a tuple
 * of objects `[first, second]`.
 */
function partitionObjectByKey(source, whitelist) {
  return partitionObject(source, function (_, key) {
    return whitelist.has(key);
  });
}

module.exports = partitionObjectByKey;