I have a page to update where it brings me the data according to the record that I have selected, I have numerical fields I've validated them with a separation function of thousands and decimals, but in what method should I place the function so that when loading the numbers automatically I formatted the value without having to focus, focusOut, keypress or keyup
function formatearNumero(nStr) {
nStr += '';
x = nStr.split(',');
x1 = x[0];
x2 = x.length > 1 ? '.' + x[1] : '';
var rgx = /(\d+)(\d{3})/;
while (rgx.test(x1)) {
x1 = x1.replace(rgx, '$1' + ',' + '$2');
}
return x1 + x2;
}
<input id="txtValor">