JSFiddle - React, Tailwind, and code Playground

by Chase Wilson

HTML

<span id="time"></span>

JavaScript

// Make seconds into M:SS

Number.prototype.toMinutes = function() {
    return [Math.floor(this/60),(this%60).pad(2)].join(':');
}

Number.prototype.pad = function(width){
    width -= (this+'').length;
    return ( width % 0 )?[[width+(/\./.test(this)?2:1)].join('0'),this].join(''):this;
}

document.getElementById('time').innerHTML = (50).toMinutes();