1 files changed, 45 insertions, 0 deletions
diff --git a/node_modules/es5-ext/object/compare.js b/node_modules/es5-ext/object/compare.js
new file mode 100644
index 000000000..8d0785890
--- /dev/null
+++ b/node_modules/es5-ext/object/compare.js
@@ -0,0 +1,45 @@
+"use strict";
+
+var strCompare = require("../string/#/case-insensitive-compare")
+  , isObject   = require("./is-object")
+  , isValue    = require("./is-value")
+  , numIsNaN   = require("../number/is-nan")
+  , resolve
+  , typeMap;
+
+typeMap = {
+	undefined: 0,
+	object: 1,
+	boolean: 2,
+	string: 3,
+	number: 4
+};
+
+resolve = function (a) {
+	if (isObject(a)) {
+		if (typeof a.valueOf !== "function") return NaN;
+		a = a.valueOf();
+		if (isObject(a)) {
+			if (typeof a.toString !== "function") return NaN;
+			a = a.toString();
+			if (typeof a !== "string") return NaN;
+		}
+	}
+	return a;
+};
+
+module.exports = function (val1, val2) {
+	if (val1 === val2) return 0; // Same
+
+	val1 = resolve(val1);
+	val2 = resolve(val2);
+	// eslint-disable-next-line eqeqeq
+	if (val1 == val2) return typeMap[typeof val1] - typeMap[typeof val2];
+	if (!isValue(val1)) return -1;
+	if (!isValue(val2)) return 1;
+	if (typeof val1 === "string" || typeof val2 === "string") {
+		return strCompare.call(val1, val2);
+	}
+	if (numIsNaN(val1) && numIsNaN(val2)) return 0; // Jslint: ignore
+	return Number(val1) - Number(val2);
+};