31 lines
733 B
JavaScript
31 lines
733 B
JavaScript
"use strict";
|
|
|
|
/**
|
|
* Copyright (c) 2013-present, Facebook, Inc.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*
|
|
* @typechecks
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* 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(array, predicate, context) {
|
|
var first = [];
|
|
var second = [];
|
|
array.forEach(function (element, index) {
|
|
if (predicate.call(context, element, index, array)) {
|
|
first.push(element);
|
|
} else {
|
|
second.push(element);
|
|
}
|
|
});
|
|
return [first, second];
|
|
}
|
|
|
|
module.exports = partitionArray; |