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1 files changed, 7 insertions, 0 deletions

diff --git a/src/node_modules/es-abstract/2017/IsPropertyKey.js b/src/node_modules/es-abstract/2017/IsPropertyKey.js
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+++ b/src/node_modules/es-abstract/2017/IsPropertyKey.js
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+'use strict';
+
+// https://www.ecma-international.org/ecma-262/6.0/#sec-ispropertykey
+
+module.exports = function IsPropertyKey(argument) {
+	return typeof argument === 'string' || typeof argument === 'symbol';
+};