pls explain this code!

Question

var count = 0;

for(i = 0; i < 3; i++){
for(j = 3; j>0; j--){
++count;
document.write(i + "<br>");
}
}
document.write(++count);

Answer 1

If you don't know yourself after achieving the JS course, you need to redo it more closely ^^

Answer 2

increment:

i++ is equivalent of i += 1 wich is equivalent to i = i+1
++i is same, but incrementation done before use of x value (if used in the left part of an assignement for example)

loop:

for (i=0; i<3; i++)

have three distinct 'arguments' part separated by semi-colon:

> i = 0; initialize a counter, done only at begin of loop
> i < 3; test of the counter, done before each iteration
> i++; incrementation or anything to do at end of each iteration

Answer 3

@visph I'm learning everyday. problem is I've no teacher except w3school and sololearn. that's why frequently I asked here. if you know answer write down otherwise....