33 lines
814 B
Plaintext
33 lines
814 B
Plaintext
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/**
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* Copyright (c) 2013-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @providesModule someSet
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* @flow
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* @typechecks
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*/
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'use strict';
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import type Set from './Set';
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/**
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* The someSet() method tests whether some elements in the given Set pass the
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* test implemented by the provided function.
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*/
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function someSet<T>(set: Set<T>, callback: (value: T, key: T, set: Set<T>) => boolean, context?: any): boolean {
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var iterator = set.entries();
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var current = iterator.next();
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while (!current.done) {
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var entry = current.value;
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if (callback.call(context, entry[1], entry[0], set)) {
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return true;
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}
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current = iterator.next();
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}
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return false;
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}
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module.exports = someSet;
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