37 lines
812 B
JavaScript
37 lines
812 B
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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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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*
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* @format
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*/
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// flowlint ambiguous-object-type:error
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'use strict';
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/**
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* Creates a copy of the provided value, ensuring any nested objects have their
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* keys sorted such that equivalent values would have identical JSON.stringify
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* results.
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*/
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function stableCopy(value) {
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if (!value || typeof value !== 'object') {
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return value;
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}
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if (Array.isArray(value)) {
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return value.map(stableCopy);
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}
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var keys = Object.keys(value).sort();
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var stable = {};
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for (var i = 0; i < keys.length; i++) {
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stable[keys[i]] = stableCopy(value[keys[i]]);
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}
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return stable;
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}
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module.exports = stableCopy; |