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

You can also use an expression as a key by wrapping it in [] when creating an object:

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