I am stuck in a js function.

function test() {
    setTimeout(function() {
        console.log('hrllo')
        return "I love You !!";
    }, 3000);
}

function main() {
    var result = test();
    console.log(result);     // must be I love You !!
}

I am working in pure Js which is JS 2017 supported means we can use async, await or promise. Can anybody please help me achieve the result?