Revealing the mystery behind this - https://readosapien.com/revealing-the-mystery-behind-this

bind5.js

let song1 = {
    song: 'Blank Space',
    getSong: function() {
        console.log(this.song);
    }
};
let song2 = {
    song: 'Shape of you',
};

let song = song1.getSong.bind(song2); // Shape of you
song();