Why are var empty after audio.get method?

Question

JavaScript

var urlSong = '';
var titleSong = '';
var artistSong = '';
var durationSong = '';

VK.api('audio.get', {count:1}, function(audio) {
    //console.log(audio.response[0].url);
    urlSong = audio.response[0].url,
    titleSong = audio.response[0].title,
    artistSong = audio.response[0].artist,
    durationSong = audio.response[0].duration
})

var Playlist = [
    {
        mp3:urlSong,
        title:titleSong,
        artist:artistSong,
        duration:durationSong
    }

];

This is how I try to shove the answer received by VK into var, but it even went wrong and does not work, what's the jamb?

Answer 1

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