How to remove a property from a javascript object

Question

Say I create an object thus:

var myJSONObject =
        {"ircEvent": "PRIVMSG", "method": "newURI", "regex": "^http://.*"};

What is the best way to remove the property 'regex'? i.e. I would like to end up with myJSONObject such that:

myJSONObject ==
        {"ircEvent": "PRIVMSG", "method": "newURI"};

Thanks.

Answer 1

like this:

delete myJSONObject.regex;
// or,
delete myJSONObject['regex'];
// or,
var prop = "regex";
delete myJSONObject[prop];

Update: For anyone interested in reading more about it, kangax has written an incredibly in-depth blog post about the delete statement on his blog. Understanding delete. Highly recommended.

Answer 2

var myJSONObject = {"ircEvent": "PRIVMSG", "method": "newURI", "regex": "^http://.*"};

delete myJSONObject.regex;

alert ( myJSONObject.regex);

works in FF and IE and I think all others