17 lines
361 B
JavaScript
17 lines
361 B
JavaScript
'use strict';
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var Type = require('./Type');
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// https://262.ecma-international.org/5.1/#sec-11.9.6
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module.exports = function StrictEqualityComparison(x, y) {
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var xType = Type(x);
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var yType = Type(y);
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if (xType !== yType) {
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return false;
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}
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if (xType === 'Undefined' || xType === 'Null') {
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return true;
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}
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return x === y; // shortcut for steps 4-7
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};
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