what is answer for this loop and why?

Question

var i = 1;
for (k=1; k<10;
k++) {
i += k;
}

Answer 1

var i = 1;

for
(k=1; k<10
;
k++)
{

i += k;

}

that would work 👍👍

Answer 2

For what,
you can try in code playground (4th button, with {} icon)

For why,
1 + 1 + 2 + 3 +.... + 9

Answer 3

d1spache thanks I just could not understand why the answer was 46

;)

Answer 4

output would be: 2 4 7 11 16 22 29 37 46

k=1 i=1
i = i + k;
i = 1 + 1; = 2

k = 2; i = 2;
i = i + k;
i = 2 + 2; = 4

k = 3; i = 4;
i = i + k;
i = 4 + 3; = 7

k = 4; i = 7;
i = i + k;
i = 7 + 4; = 11

and so on