JuniorTheoryCommon

What does the program print?

JavaScript

let s = 0;
for (let i = 1; i < 5; i++) {
    s += i;
}
console.log(s);

Expecting 15: the condition i < 5 is false once i reaches 5, so the body runs for 1, 2, 3 and 4 only, and the sum is 10.
Expecting a line per step: console.log(s) stands after the loop's closing brace, so it runs once, when the loop has finished.