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/**
* Copyright (c) 2013-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @providesModule partitionArray
* @typechecks
* @flow
*/
/**
* Partitions an array given a predicate. All elements satisfying the predicate
* are part of the first returned array, and all elements that don't are in the
* second.
*/
function partitionArray<Tv>(array: Array<Tv>, predicate: (value: Tv, index: number, array: Array<Tv>) => boolean, context?: any): [Array<Tv>, Array<Tv>] {
var first = [];
var second = [];
array.forEach((element, index) => {
if (predicate.call(context, element, index, array)) {
first.push(element);
} else {
second.push(element);
}
});
return [first, second];
}
module.exports = partitionArray;
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