Izmjenjena struktura, dodan backand

web/node_modules/es5-ext/math/sign/implement.js

@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "sign", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}

web/node_modules/es5-ext/math/sign/index.js

@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.sign
+	: require("./shim");

web/node_modules/es5-ext/math/sign/is-implemented.js

@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var sign = Math.sign;
+	if (typeof sign !== "function") return false;
+	return (sign(10) === 1) && (sign(-20) === -1);
+};

web/node_modules/es5-ext/math/sign/shim.js

@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function (value) {
+	value = Number(value);
+	if (isNaN(value) || (value === 0)) return value;
+	return value > 0 ? 1 : -1;
+};