<!-- begin snippet: js hide: false console: true babel: false -->
<!-- language: lang-js -->
var str='"123","bankole","wale","","","",""';
var lastCommaIndex = str.lastIndexOf(',');
var part1 = str.substring(0, lastCommaIndex);
var part2 = str.substring(lastCommaIndex + 1, str.length);
console.log(part1)
console.log(part2)
<!-- end snippet -->
<!-- begin snippet: js hide: false console: true babel: false -->
<!-- language: lang-js -->
var myJSONObject = {"ircEvent": "PRIVMSG", "method": "newURI", "regex": "^http://.*"};
delete myJSONObject.regex;
console.log ( myJSONObject.regex); // logs: undefined
<!-- end snippet -->
This works in Firefox and Internet Explorer, and I think it works in all others.
