I don't understand result this challenge is 3, help me please!

Question

var i = 0, j = 0, count = 0;
for (; i < 3; i++) {
for(; j < 3; j++) {
count++
}
}
alert(count);

Answer 1

The increment only apply for the case:-

✅ i = 0, j = 0
✅ i = 0, j = 1
✅ i = 0, j = 2

only as there's no re-initialization in the inner loop and hence the answer is 3. Tricky! 😉

Answer 2

Well there's as a loop always comprises of 3 components:-

✅ Initialization
✅ Condition
✅ Update

The usual initialization was moved up to the top in this case.

Answer 3

9

Answer 4

Why no re-initialization in the inner loop? I still don't understand, on SoloLearn doesn't teach.