//@noUnusedLocals:true

function f() {
    for (const [_a, b] of [['key', 1]]) {
        console.log(b);
    }

    for (const [a, _b] of [['key', 1]]) {
        console.log(a);
    }

    for (const [_a, _b] of [['key', 1]]) {}
}