How to remove a property from a JavaScript object?

Say I create an object as follows:
var myObject = {
    "ircEvent": "PRIVMSG",
    "method": "newURI",
    "regex": "^http://.*"
};
What is the best way to remove the property regex to end up with new myObject as follows?
var myObject = {
    "ircEvent": "PRIVMSG",
    "method": "newURI"
};

Answer: 

Like this:
delete myObject.regex;
// or,
delete myObject['regex'];
// or,
var prop = "regex";
delete myObject[prop];
For anyone interested in reading more about it, Stack Overflow user kangax has written an incredibly in-depth blog post about the delete statement on their blog, Understanding delete. It is highly recommended.