使用jQuery验证信用卡输入

Question

我正在jQuery中进行表单验证。只需尝试验证名称，电子邮件和检查以确保选择一个活动，表单就可以正常工作。如果用户选择信用卡付款，我必须对cc号码，邮政编码和cvv进行验证。我试图重构代码，我认为我的逻辑是在某处，因为当我提交没有数据的表单时，唯一的错误消息是CC数字和表单提交，当它应该被阻止（通过preventDefault）。控制台没有错误，所以我知道我的逻辑必须搞砸到某个地方。任何人？

var intRegex = /[0-9 -()+]+$/;


// Name can't be blank
function validateName(){
    var name = $('#name').val();
    var error_name = true
    if (name === ''){
        $(".error_name").show();
        console.log('name cant be empty');
    } else {
        error_name = false;
    }
    return error_name

}
// Email must be valid
function validateEmail(){
    var email = $('#mail').val();
    var error_mail = true;
    var pattern = new RegExp(/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/);
    error_email = pattern.test(email);
    if (!error_email){
        $(".error_email").show();
        error_email = true;
    } else {
        error_email = false;
    }
    return error_email
}
// One Activity Must Be Selected
function validateActivities(){
    var totalActivities = $('.activities input[type="checkbox"]:checked').length;
    var error_activity = true;
    if (totalActivities < 1) {
        $(".error_activities").show();
    } else {
        error_activity = false;
    }
    return error_activity
}

// Validate the Credit Card Number --Make sure is between 13 to 16 digit number
function validateCC(){
    var cc = $("#cc-num").val();
    var errorCC = true;
    errorCC = intRegex.test(cc);
    if ((!errorCC) || ((cc.length < 13) || (cc.length > 16))){
        $(".error_cc").show();
        errorCC = true;
    } else {
        errorCC = false;
    }
    return errorCC
}

function validateZip(){
    var zip = $("#zip").val();
    var errorZip = true;
    errorZip = intRegex.text(zip);
    if ((!errorZip)||(zip!= 5)){
        $(".error_zip").show();
        errorZip = true;
    } else {
        errorZip = false;
    }
    return errorZip
}

function validateCVV(){
    var cvv = $("#cvv").val().length;
    var errorCVV = true;
    errorCVV = intRegex.text(cvv);
    if ((!errorCVV)||(cvv!= 3)){
        $(".error_cvv").show();
        errorCVV = true;
    } else {
        errorCVV = false;
    }
    return errorCVV
}

//Check for Credit Card Issue -- Any problems with CC, Zip Code or CVV
function validateCredit(){
    var credit = $("#payment option[value='credit card']")
    errorCC = validateCC();
    errorZip = validateZip();
    errorCVV = validateCVV();
    isCreditIssue = false;
    if (credit.prop('selected', true)){
        if ((errorCC) || (errorZip) || (errorCVV)){
        isCreditIssue = true;
        console.log('credit issue');
        }
     }
    return isCreditIssue
}


// On Form Submission Validate Form
$("#contact_submit button").click(function(event){
    error_name = validateName();
    error_email = validateEmail();
    error_activity = validateActivities();
    isCreditIssue = validateCredit();

    if ((error_name) || (error_email) || (error_activity) || (isCreditIssue)){
        event.preventDefault();
    }



});