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1 files changed, 13 insertions, 0 deletions

diff --git a/src/node_modules/es-abstract/2019/SameValue.js b/src/node_modules/es-abstract/2019/SameValue.js
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+++ b/src/node_modules/es-abstract/2019/SameValue.js
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+'use strict';
+
+var $isNaN = require('../helpers/isNaN');
+
+// http://www.ecma-international.org/ecma-262/5.1/#sec-9.12
+
+module.exports = function SameValue(x, y) {
+	if (x === y) { // 0 === -0, but they are not identical.
+		if (x === 0) { return 1 / x === 1 / y; }
+		return true;
+	}
+	return $isNaN(x) && $isNaN(y);
+};