I want to remove the number and braces but splicing results in the string between the index taken from the string. I just want it removed leaving me with: "1234 ..... ABCDEFG"

```
 var mystring = "1234 ..... { 400 } ABCDEFG";

 var s1 = mystring.indexOf("{");
 var s2 = mystring.indexOf("}");        
 mystring = mystring.splice(s1,s2);

```