Could someone explain me how this code works line to line? Thanks.

Question

for(var i=1;i<4;i++){
i=f(i);
}
function f(x){
return x+2;
}

Answer 1

FUNCTION SHOULD BE DECLARED FIRST BEFORE YOU CALL IT.

THIS CODE WILL GENERATE ERROR.

Answer 2

IF IT IS DECLARED FIRST THAN

YOUR CODE WILL LOOP FOUR TIME .

EVERY TIME YOUR PROGRAM LOOP , IT WILL CALL FUNCTION f WHICH WILL INCREMENT CURRENT I VALUE AND STORE IT IN I.

Answer 3

ok, but it will run at least once?

Answer 4

NO. FOR GOD'S SAKE.