35 lines
915 B
JavaScript
35 lines
915 B
JavaScript
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/**
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* Copyright (c) 2015-present, 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 mergeFast
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* @flow
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*/
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'use strict';
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/**
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* Faster version of `merge` that doesn't check its arguments and
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* also merges prototype inherited properties.
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*
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* @param {object} one Any non-null object.
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* @param {object} two Any non-null object.
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* @return {object} Merging of two objects, including prototype
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* inherited properties.
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*/
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var mergeFast = function(one: Object, two: Object): Object {
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var ret = {};
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for (var keyOne in one) {
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ret[keyOne] = one[keyOne];
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}
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for (var keyTwo in two) {
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ret[keyTwo] = two[keyTwo];
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}
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return ret;
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};
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module.exports = mergeFast;
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