【JQuery】Thousands separators

input text 千分位處理

直接看程式

// Compatible with keyup
function numberWithCommas(x) {
    return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}

$(function () {
    // Init format after load
    $(".numberOnly").each(function () {
        $(this).val(numberWithCommas($(this).val()));
    });
    
    // Realtime format changing
    $(".numberOnly").keyup(function (event) {
        // skip for arrow keys
        if (event.which >= 37 && event.which <= 40) return;
        // format number
        $(this).val(function (index, value) {
            return value
                .replace(/\D/g, "")
                .replace(/\B(?=(\d{3})+(?!\d))/g, ",");
            });
    });
});

$("#form1").submit(function () {
    // Remove commas before submit
    $(".numberOnly").each(function () {
        $(this).html($(this).html().replace(/,/g, ""));
    });
    return true;
});

ref: Init part、Realtime typing part