What will happen if the first argument of open() is omitted?

Which function among the following lets to register a function to be invoked once?

A. setTimeout()

B. setTotaltime()

C. setInterval()

D. none of the mentioned

Which function among the following lets to register a function to be invoked repeatedly after a certain time?

A. setTimeout()

B. setTotaltime()

C. setInterval()

D. none of the mentioned

Which is the handler method used to invoke when uncaught JavaScript exceptions occur?

A. Onhalt

B. Onerror

C. Both onhalt and onerror

D. None of the mentioned

Which property is used to obtain browser vendor and version information?

A. modal

B. version

C. browser

D. navigator