Challenge Count Backwards With A For Loop - thelastmile/FreeCodeCamp GitHub Wiki
Challenge Count Backwards With a For Loop
A for loop can also count backwards, so long as we can define the right conditions.
In order to count backwards by twos, we'll need to change our initialization
, condition
, and final-expression
.
We'll start at i = 10
and loop while i > 0
. We'll decrement i
by 2
each loop with i -= 2
.
var ourArray = [];
for(var i = 10; i > 0; i -= 2) {
ourArray.push(i);
}
ourArray will now contain [10,8,6,4,2]