The for loop part 3

The For Loop

If statement 2 returns true, the loop will start over again, if it returns false, the loop will end.
Statement 2 is also optional.
If you omit statement 2, you must provide a break inside the loop. Otherwise, the loop will never end.
Statement 3 is used to change the initial variable. It can do anything, including negative increment (i--), positive increment (i = i + 15), or anything else.
Statement 3 is also optional, and it can be omitted if you increment your values inside the loop.

var i = 0;
for (; i < 10; ) {
document.write(i);
i++;
}Try It Yourself

You can have multiple nested for loops.

Fill in the blanks to print EVEN values from 0 to 20 using a for loop:

var x = 0;
for (; x <= 

 

 

; x += 

 

 

) {
   document.write(x); 
}