diff --git a/snippets/javascript.snippets b/snippets/javascript.snippets
index ee2aeb4..0f81901 100644
--- a/snippets/javascript.snippets
+++ b/snippets/javascript.snippets
@@ -94,3 +94,64 @@ snippet gett
 # console.log (Firebug)
 snippet cl
 	console.log(${1});
+# return
+snippet ret
+        return ${1:result}
+# for (property in object ) { ... }
+snippet fori
+        for (var ${1:prop} in ${2:Things}) {
+                ${3:$2[$1]}
+        };
+# hasOwnProperty
+snippet has
+        hasOwnProperty(${1})
+# docstring
+snippet /**
+        /**
+         * ${1:description}
+         *
+         */
+snippet @par
+        @param {${1:type}} ${2:name} ${3:description}
+snippet @ret
+        @return {${1:type}} ${2:description}
+
+# JSON.parse
+snippet jsonp
+        JSON.parse(${1:jstr});
+# JSON.stringify
+snippet jsons
+        JSON.stringify(${1:object});
+# self-defining function
+snippet sdf
+        var ${1:function_name} = function (${2:argument}) {
+                ${3:// initial code ...}
+
+                $1 = function ($2) {
+                        ${4:// main code}
+                };
+        }
+# singleton
+snippet sing
+        function ${1:Singleton} (${2:argument}) {
+                // the cached instance
+                var instance;
+
+                // rewrite the constructor
+                $1 = function $1($2) {
+                        return instance;
+                };
+                
+                // carry over the prototype properties
+                $1.prototype = this;
+
+                // the instance
+                instance = new $1();
+
+                // reset the constructor pointer
+                instance.constructor = $1;
+
+                ${3:// code ...}
+
+                return instance;
+        }
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