diff --git a/README.md b/README.md
index 8f0dc73..ac31e08 100644
--- a/README.md
+++ b/README.md
@@ -60,3 +60,7 @@ clear: will trim() + remove (+1) white-spaces in between
 ##### ( 10 ) String.insert()
 
 `"normal text".insert("X", 4); \\ return "normXal text"`
+
+##### ( 11 ) String.delete()
+
+`"xhello xworxld".delelte('x'); \\ return "hello world"`
diff --git a/jstring.js b/jstring.js
index c2a082b..ed8724f 100644
--- a/jstring.js
+++ b/jstring.js
@@ -62,3 +62,22 @@ String.prototype.insert = function(text,at) {
 	
 	return this.substring(0,at)+text+this.substring(at);
 }
+
+/*
+ * update 2016/10//04
+ */
+//(11)String.delete()
+String.prototype.delete=function(text){
+	if(!this.contains(text))
+		return this;
+	var ary=this.split("");
+	for(var i=0;i<ary.length;++i){
+		if(ary[i] == text){
+			ary.splice(i,1);
+		}
+	}
+	return ary.join("");
+}
+
+
+