23 lines
680 B
JavaScript
23 lines
680 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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* strict
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* @format
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*/
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'use strict';
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/**
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* A fast test to determine if two values are equal scalars:
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* - compares scalars such as booleans, strings, numbers by value
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* - compares functions by identity
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* - returns false for complex values, since these cannot be cheaply tested for
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* equality (use `areEquals` instead)
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*/
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function isScalarAndEqual(valueA, valueB) {
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return valueA === valueB && (valueA === null || typeof valueA !== 'object');
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}
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module.exports = isScalarAndEqual; |