feature(join) add

lib/join.js

@@ -0,0 +1,36 @@
+(function(scope) {
+    'use strict';
+    
+    var Scope = scope.window ? window : global;
+    
+    if (typeof module === 'object' && module.exports)
+        module.exports  = join;
+    else
+        Scope.join      = join;
+    
+    function join (names) {
+        var url,
+            regExp      = new RegExp(',', 'g'),
+            nameStr     = names + '';
+        
+        if (!names)
+            throw(Error('names must be array!'));
+        
+        nameStr         = nameStr.replace(regExp, ':');
+        nameStr         = rmFirstSlash(nameStr);
+        url             = '/join/' + nameStr;
+        
+        return url;
+    }
+    
+    function rmFirstSlash(url) {
+        var regExp  = new RegExp('^/'),
+            is      = url.match(regExp);
+        
+        if (is)
+            url = url.replace('/', '');
+        
+        return url;
+    }
+    
+})(this);