yesno, noyes

Format:

yesno(text_expr)
noyes(text_expr)

Result:

0 or 1

Description:

All pending input is flushed and the argument is displayed as a prompt string. Depending on whether the user answers with 'y' or 'n' the function returns 1 or 0.

The default return-value of YESNO is 0, of NOYES is 1.

e.g.:

if !yesno("Continue ") then end