How do you display JavaScript datetime in 12 hour AM/PM format?

Question

How do you display a JavaScript datetime object in the 12 hour format (AM/PM)?

Answer 1

A short and sweet implementation:

// returns date object in 12hr (AM/PM) format
var formatAMPM = function formatAMPM(d) {
    var h = d.getHours();
    return (h % 12 || 12)
        + ':' + d.getMinutes().toString().padStart(2, '0')
        + ' ' + (h < 12 ? 'A' : 'P') + 'M';
};