The setTimeout method executes specified function or piece of code after specific given time.
setTimeout(function, milliseconds, arg1, arg2, ...)
function which executes after timer expires.
milliseconds optinal is time expires it
arg1, arg2 optional parameters pass in the function.
clearTimeout method cancels the code to be execute set in setTimeout method.
setTimeoutVariable is the variable defined for setTimeout method.
This is useful to stop executing code set in setTimeout method. For example, stop to send request server when user start typing before request was send.