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nodejs/node_modules/is-nan/shim.js

@@ -0,0 +1,12 @@
+'use strict';
+
+var define = require('define-properties');
+var getPolyfill = require('./polyfill');
+
+/* http://www.ecma-international.org/ecma-262/6.0/#sec-number.isnan */
+
+module.exports = function shimNumberIsNaN() {
+	var polyfill = getPolyfill();
+	define(Number, { isNaN: polyfill }, { isNaN: function () { return Number.isNaN !== polyfill; } });
+	return polyfill;
+};