window.addEventListener("DOMContentLoaded", () => {
    let elements = document.getElementsByClassName("otp-field");
    for (const element of elements) {
        element.addEventListener("input", checkFields);
    }
});

function checkFields(e: Event) {
    const target = e.target as HTMLInputElement;
    if (target) {
        target.value = target.value.replace(/[^0-9.]/g, '').replace(/(\..*?)\..*/g, '$1');
    }
}