How to use a RegExp literal as object key?

Question

I would like to use create a object that contains regular expressions as the key value. I tried to use the following syntax:

var kv = {
    /key/g : \"value\         


        

Answer 1

Object keys cannot be RegExp objects. You must use a string or a valid ID. That being said, you could do something like this:

var kv = {
    "/key/g": "value"
};

I'm curious. Why do you want to do this?

EDIT: I am partially mistaken. RegExp objects can be used as keys, but not using the object literal syntax. See jmar777's answer.