33 lines
814 B
Plaintext
33 lines
814 B
Plaintext
/**
|
|
* 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.
|
|
*
|
|
* @providesModule someSet
|
|
* @flow
|
|
* @typechecks
|
|
*/
|
|
|
|
'use strict';
|
|
|
|
import type Set from './Set';
|
|
|
|
/**
|
|
* The someSet() method tests whether some elements in the given Set pass the
|
|
* test implemented by the provided function.
|
|
*/
|
|
function someSet<T>(set: Set<T>, callback: (value: T, key: T, set: Set<T>) => boolean, context?: any): boolean {
|
|
var iterator = set.entries();
|
|
var current = iterator.next();
|
|
while (!current.done) {
|
|
var entry = current.value;
|
|
if (callback.call(context, entry[1], entry[0], set)) {
|
|
return true;
|
|
}
|
|
current = iterator.next();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
module.exports = someSet; |