By clicking on the document.write button you will execute document.write() and if this is done after an HTML document is loaded, it will delete all existing HTML!
This is some text
If the computer had a left hand then how many fingers is it holding up?
In the text box below please capture the number of fingers you have holding up and press the "Guess" button. The computer will then guess how many there were.
Another example to allow the computer to guess how many fingers you have up using functions.
Click the button to display the various formats of date and time.
Check your reaction time by clicking on the shape that appears below.
Time taken is :
Activate debugging with F12 and then select Console in the debugger menu.