js date of yesterday

1var yesterday = new Date((new Date()).valueOf() - 1000*60*60*24);
2

1var d = new Date();
2d.setDate(d.getDate() - 1);
3

1let today = new Date();
2let yesterday = new Date();
3
4yesterday.setDate(today.getDate() - 1);
5
6console.log('Today: ' + today);
7console.log('Yesterday: ' + yesterday);