Add sort method, and publish v1.2.0. #5

README.md

@@ -97,6 +97,12 @@ search.set("id", 2);
 search.toString();
 ```
 
+### sort
+
+```javascript
+search.sort();
+```
+
 ### forEach
 
 ```javascript

index.js

@@ -167,6 +167,23 @@
         return query.join('&');
     };
 
+
+    /**
+     * Sort all name-value pairs
+     */
+    prototype.sort = function () {
+        var dict = this[__URLSearchParams__], keys = [], k, i, ret = {};
+        for (k in dict) {
+            keys.push(k);
+        }
+        keys.sort();
+        for (i = 0; i < keys.length; i ++) {
+            ret[keys[i]] = dict[keys[i]];
+        }
+        this[__URLSearchParams__] = ret;
+    };
+
+
     /**
      * Returns an iterator allowing to go through all keys of
      * the key/value pairs contained in this object.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "url-search-params-polyfill",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "description": "a simple polyfill for javascript URLSearchParams",
   "homepage": "https://github.com/jerrybendy/url-search-params-polyfill",
   "main": "index.js",

test/index.test.js

@@ -225,6 +225,16 @@ describe('Iterator', function () {
 
 });
 
+
+describe('Sort', function () {
+    it ('Sort keys', function () {
+        var obj = new URLSearchParams('q=flag&key=hello&s=world');
+        obj.sort();
+        expect(obj.toString()).to.be.equal('key=hello&q=flag&s=world');
+    });
+});
+
+
 describe('Others', function () {
 
     var testObj = {