Help with number animation

Hi Yisrael thanks for the help! I also try Scott’s app but it still can only addup integer numbers but using your app will be quite easier for beginners. The below is my adjustment :

let startNum6 = 3500 ;
let endNum6 = 5000 ;
const duration6 = 1000 ;

$w . onReady ( function () {
setInterval (() => {
countUp6 ();
}, duration6 );
});

function countUp6 () {
if ( startNum6 <= endNum6 ) {
startNum6 ++;
let decimalString = startNum6++/ 10 ;
$w ( ‘#text387’ ). text = decimalString . toString ();
}