You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
39 lines
857 B
39 lines
857 B
/**
|
|
* Copyright 2015-present Facebook. All Rights Reserved.
|
|
*
|
|
* @providesModule partitionObject
|
|
* @typechecks
|
|
* @flow
|
|
*/
|
|
'use strict';
|
|
|
|
var forEachObject = require("./forEachObject");
|
|
/**
|
|
* Partitions an object given a predicate. All elements satisfying the predicate
|
|
* are part of the first returned object, and all elements that don't are in the
|
|
* second.
|
|
*/
|
|
|
|
|
|
function partitionObject<Tv>(object: {
|
|
[key: string]: Tv
|
|
}, callback: (value: Tv, key: string, object: {
|
|
[key: string]: Tv
|
|
}) => boolean, context?: any): [{
|
|
[key: string]: Tv
|
|
}, {
|
|
[key: string]: Tv
|
|
}] {
|
|
var first = {};
|
|
var second = {};
|
|
forEachObject(object, (value, key) => {
|
|
if (callback.call(context, value, key, object)) {
|
|
first[key] = value;
|
|
} else {
|
|
second[key] = value;
|
|
}
|
|
});
|
|
return [first, second];
|
|
}
|
|
|
|
module.exports = partitionObject; |