How do I remove a property from a JavaScript object?

#short
#javascript
#object
#properties
Given an object:
let myObject = {
"ircEvent": "PRIVMSG",
"method": "newURI",
"regex": "^http://.*"
};

How do I remove the property regex to end up with the following myObject?
let myObject = {
"ircEvent": "PRIVMSG",
"method": "newURI"
};