Question

How would I add a new variable into an array each time a user clicks a button.

For example: I would have a timer and each time a user clicks a button the current time is stored in an array.

array[0] = 2:00; 
array[1] = 2:10; 
array[2] = 2:43; 

This would add a new key each time the user clicks a button.

Answer 1

Push the new value on click:

$('#mybutton').click(function(){
    array.push($('#mytimer').val());
});

This assuming there already is an array of course named array.