Format JavaScript date as yyyy-mm-dd

Question

I have a date with the format Sun May 11,2014. How can I convert it to 2014-05-11 using JavaScript?

Answer 1

No library is needed

Just pure JavaScript.

The example below gets the last two months from today:

var d = new Date()
d.setMonth(d.getMonth() - 2);
var dateString = new Date(d);
console.log('Before Format', dateString, 'After format', dateString.toISOString().slice(0,10))