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30 lines
889 B
30 lines
889 B
10 years ago
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/**
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* Copyright 2013-2015, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule forEachAccumulated
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*/
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'use strict';
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/**
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* @param {array} an "accumulation" of items which is either an Array or
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* a single item. Useful when paired with the `accumulate` module. This is a
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* simple utility that allows us to reason about a collection of items, but
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* handling the case when there is exactly one item (and we do not need to
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* allocate an array).
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*/
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var forEachAccumulated = function(arr, cb, scope) {
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if (Array.isArray(arr)) {
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arr.forEach(cb, scope);
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} else if (arr) {
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cb.call(scope, arr);
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}
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};
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module.exports = forEachAccumulated;
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