JSFiddle - React, Tailwind, and code Playground

by superbDeveloper

JavaScript

var TStart;
var TEnd;
var TTotal;
var SChk;
var EChk;

function formatCurrency(num) {
    num = num.toString().replace(/\$|\,/g, '');
    if (isNaN(num))
        num = "0";
    sign = (num == (num = Math.abs(num)));
    num = Math.floor(num * 100 + 0.50000000001);
    cents = num % 100;
    num = Math.floor(num / 100).toString();
    if (cents < 10)
        cents = "0" + cents;
    for (var i = 0; i < Math.floor((num.length - (1 + i)) / 3); i++)
        num = num.substring(0, num.length - (4 * i + 3)) +
    num.substring(num.length - (4 * i + 3));
    return (((sign) ? '' : '-') + num + '.' + cents);
}

TStart = "2:00 PM";
TEnd = "4:00 PM";

if(TStart.indexOf("PM") > 0){SChk = 1}
if(TEnd.indexOf("PM") > 0)
{EChk = 1}
TStart = TStart.replace(" PM","");
TStart = TStart.replace(" AM","");
TStart = TStart.replace(":",".");
TEnd = TEnd.replace(" PM","");
TEnd = TEnd.replace(" AM","");
TEnd = TEnd.replace(":",".");
if(SChk == 1)
    {TStart = parseFloat(TStart) + 12;}
if(EChk == 1)
{TEnd = parseFloat(TEnd) + 12;}

TTotal = parseFloat(TEnd) - parseFloat(TStart);

TTotal = formatCurrency(TTotal);

TTotal = TTotal.replace(".85",".45");
TTotal = TTotal.replace(".7",".3");
TTotal = TTotal.replace(".55",".15");
TTotal.replace(".",":");

alert(TTotal);