表格 - 如果文本在輸入欄中被刪除，用戶仍然可以點擊提交

Question

對於我的表單，如果用戶輸入所有輸入字段，然後刪除其中一些部分，他們仍然可以提交表單。我怎樣才能防止這種情況發生？任何信息，將不勝感激。

Fiddle

<form id="contact_form" class="container form-hide" autocomplete="off" autocomplete="false" action="https://webto.salesforce.com/servlet/servlet.WebToLead?encoding=UTF-8" method="POST" style="background-color: #00AB8E"> 
       <label>First Name 
       <span class="error">Please enter data.</span> 
       <input id="tesFN first_name " maxlength="40" name="first_name" size="20" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i> 
       </label> 
       <label>Last Name 
       <input id="last_name" maxlength="80" name="last_name" size="20" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i> 
       </label> 
       <label>Email 
       <span class="error">Please enter a valid email address</span> 
       <input id="email" maxlength="80" name="email" size="20" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-times-circle-o" aria-hidden="true"></i> 
       </label> 
       <label>Phone 
       <span class="error">Please enter a valid phone number</span>    
       <input id="phone" maxlength="80" name="phone" size="20" type="tel" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i> 
       </label> 
       <label>City 
       <input id="city" name="city" maxlength="40" size="20" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i> 
       </label> 
       <label>State/Province 
       <input id="state" maxlength="20" name="state" size="20" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i> 
       </label> 
       <label id="co">Company 
       <input id="company" name="company" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i> 
       </label> 
       <label>Comments 
       <textarea id="comments" name="" id="" cols="30" rows="10" onkeyup="test()" required style="background-color: #30bda6"></textarea> 
       <input id="sub2" type="submit" disabled="disabled" value="SUBMIT"/> 
       </label> 

       <div>     
        <select hidden="true" id="00N6A000008yXMN" name="00N6A000008yXMN" title="Product Interest"> 
        <option value="">--None--</option> 
        <option selected="selected" value="Visiant">Visiant</option> 
        <option value="Tessellate">Tessellate</option> 
       </select><br> 

       <select hidden="true" id="lead_source" name="lead_source"> 
        <option value="">--None--</option> 
        <option value="Internal">Internal</option> 
       <option value="Trade Show">Trade Show</option> 
       <option selected="selected" value="Website">Website</option> 
       <option value="Direct Marketing">Direct Marketing</option> 
       <option value="Social Media">Social Media</option> 
       <option value="Other">Other</option> 
       </select><br> 
       </div> 
      </form> 

body { 
    color: #fff; 
    background-color: #30bda6; 
    text-align: center; 
} 

form { 
    color: #fff; 
    background-color: #f78e2a; 
    text-align: center; 
    font-family: Lato; 
} 

* { 
    box-sizing: border-box; 
} 

.form-title { 
    font-size: 38px; 
    color: #fff; 
    font-family: "Lato"; 
    letter-spacing: 70px; 
} 

input { 
    font-size: 15px; 
    height: 48px; 
    margin-top: 8px; 
    color: #333; 
} 

input[type="tel"] { 
    width: 100%; 
    padding: 10px; 
    background-color: #f9a558; 
    border: 1px solid #fff; 
    font-size: 15px; 
    height: 48px; 
    color: #333; 

} 
input[type="text"] { 
    width: 100%; 
    padding: 10px; 
    background-color: #f9a558; 
    border: 1px solid #fff; 
    font-size: 15px; 
    color: #333; 

} 

input:focus { 
    background-color: #fff; 
} 


input[type="text"]:focus { 
    background-color: #fff; 
} 

input[type="text"]:visited { 
    background-color: #fff; 
} 

input[type="tel"]:focus { 
    background-color: #fff; 
} 

input[type="tel"]:visited { 
    background-color: #fff; 
} 

.container { 
    display: flex; 
    flex-direction: column; 
    padding: 5px 0; 
} 

textarea { 
    width: 100%; 
    background-color: #f9a558; 
    border: 1px solid #fff; 
    color: #333; 
    font-family: Lato; 
} 

textarea:focus { 
    background-color: #fff; 
} 

#co { 
    flex-basis: 100%; 
    max-width: 100%; 
} 

label:nth-last-child(-n+2) { 
    flex-basis: 100%; 
    max-width: 100%; 
} 

select, 
label { 
    height: 50px; 
    width: 48%; 
    margin: 2% 1%; 
    text-align: left; 
    font-family: "Lato"; 
    font-size: 15px; 
} 

#sub { 
    border-radius: 6px; 
    width: 120px; 
    height: 35px; 
    text-transform: uppercase; 
    display: block; 
    margin-top: 48px; 
    font-size: 16px; 
    font-family: Lato; 
    border: none; 
} 

#sub2 { 
    border-radius: 6px; 
    width: 120px; 
    height: 35px; 
    text-transform: uppercase; 
    display: block; 
    margin-top: 48px; 
    font-size: 16px; 
    font-family: Lato; 
    border: none; 
} 


label { 
    position: relative; 
} 

.fa { 
    position: absolute; 
    bottom: 0; 
    right: 0; 
    transform: translate(-50%, 65%); 
    opacity: 0; 
    transition: opacity .5s, color .5s; 
} 

[data-valid] .fa { 
    opacity: 1; 
    color: #00594C; 
} 

[data-valid="valid"] .fa { 
    color: #00594C; 
} 

[data-valid="error"] .fa { 
    color: #AB0000; 
} 

.error { 
    display: none; 
    color: #AB0000; 
    font-size: .7em; 
    position: absolute; 
    left: 10px; 
    top: 0; 
    transform: translateY(150%); 
    font-size: 12px; 
    margin-top: 2px; 
} 

[data-valid="error"] .error { 
    display: block; 
} 

input#sub2:not([disabled]){ 
    background-color: #fff; 
    color: #00AB8E; 
} 

input#sub:not([disabled]){ 
    background-color: #fff; 
    color: #F68D2E;; 
} 


#thankyou { display:none;} 

#thankyou.success { 
    display: block; 
    text-align: center; 
} 

#tessellate-page input:focus { 
    background-color: #fff !important;; 
} 

#tessellate-page textarea:focus { 
    background-color: #fff !important;; 
} 

#tessellate-page input[type="text"] { 
    width: 100%; 
    padding: 10px; 
    background-color: #30bda6; 
    border: 1px solid #fff; 
    color: #333; 
} 

#tessellate-page input[type="tel"] { 
    background-color: #30bda6; 
} 

#tessellate-page textarea{ 
    background-color: #30bda6; 
} 

#comments_label { 
    margin-top: 8px; 
} 

#cap { 
    margin-top: 20px; 
} 


@media (max-width: 656px) { 
    label { 
    width: 98%; 
    height: 70px; 
    } 

    .fa { 
    transform: translate(-50%, -45%); 
    } 
} 

@media (min-width: 656px) { 
    .container { 
    flex-direction: row; 
    flex-wrap: wrap; 
    align-self: flex-start; 
    } 

    label { 
    margin-bottom: 20px; 

    } 


} 

label { 
    margin-bottom: 48px; 
} 

function phoneNumber(phone) { 
    var phoneno = /^\d{9,11}$/; 

    console.log("PHONE: "+phoneno.test(phone)); 
    return phoneno.test(phone); 
} 

$('input[type="tel"]').on('keyup', function() { 
    var $label = $(this).closest('label'); 
    if ($(this).val().trim() != '') { 
    if ($(this).is('#phone')) { 
     if (phoneNumber($(this).val())) { 
     $label.attr('data-valid', 'valid'); 
     $(this).next("i").removeClass("fa-times-circle-o").addClass("fa-check-circle"); 
     } else { 
     $label.attr('data-valid', 'error'); 
     $(this).next("i").removeClass("fa-check-circle").addClass("fa-times-circle-o"); 
     } 
    } else { 
     $label.attr('data-valid', 'valid'); 
    } 
    } else { 
    $label.removeAttr('data-valid'); 

    } 
}); 



function validateEmail(email) { 
    var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/; 

    console.log("email: "+re.test(email)); 
    return re.test(email); 
} 

$('input[type="text"]').on('keyup', function() { 
    var $label = $(this).closest('label'); 
    if ($(this).val().trim() != '') { 
    if ($(this).is('#email')) { 
     if (validateEmail($(this).val())) { 
     $label.attr('data-valid', 'valid'); 
     $(this).next("i").removeClass("fa-times-circle-o").addClass("fa-check-circle"); 

     } else { 
     $label.attr('data-valid', 'error'); 
     $(this).next("i").removeClass("fa-check-circle").addClass("fa-times-circle-o"); 
     } 
    } else { 
     $label.attr('data-valid', 'valid'); 
    } 
    } else { 
    $label.removeAttr('data-valid'); 
    } 

}); 


test = function() { 
    if ($("#first_name").val() 
     && $("#last_name").val() 
     && (validateEmail($("#email").val())) 
     && (phoneNumber($("#phone").val())) 
     && $("#phone").val() 
     && $("#city").val() 
     && $("#state").val() 
     && $("#company").val() 
     && $("#comments").val()) { 

    $("#sub").removeAttr("disabled") && $("#sub2").removeAttr("disabled"); 
    } 
} 


$('#phone').keydown(function(){ 
    var self = $(this); 
    var removedText = self.val().replace(/\D/, ''); 

    self.val(removedText); 
}); 


$("#contact_form").submit(function(event) { 
    console.log("Form success"); 
    ("#contact_form"). 
    event.preventDefault(); 
    return false; 
}) 

$("#sub").submit("click", function(e){e.preventDefault()}) 

$("#sub").on("click", function(e) 
{ 
$("#contact_form").remove(); 
$("#thankyou").addClass("success"); 
}) 


$("#sub2").submit("click", function(e){e.preventDefault()}) 

$("#sub2").on("click", function(e) 
{ 
$("#contact_form").remove(); 
$("#thankyou").addClass("success"); 
}) 

Answer 1

您的HTML一些錯誤是保持從目前正在提交按鈕。像id="tesFN first_name " - 一個id只能是單個字符串。

然後你只需要一個else條件添加到您的test()函數來設置$('#sub2').attr('disabled','disabled');

http://jsfiddle.net/M6N24/543/

function phoneNumber(phone) { 
 
    var phoneno = /^\d{9,11}$/; 
 

 
    console.log("PHONE: " + phoneno.test(phone)); 
 
    return phoneno.test(phone); 
 
} 
 

 
$('input[type="tel"]').on('keyup', function() { 
 
    var $label = $(this).closest('label'); 
 
    if ($(this).val().trim() != '') { 
 
    if ($(this).is('#phone')) { 
 
     if (phoneNumber($(this).val())) { 
 
     $label.attr('data-valid', 'valid'); 
 
     $(this).next("i").removeClass("fa-times-circle-o").addClass("fa-check-circle"); 
 
     } else { 
 
     $label.attr('data-valid', 'error'); 
 
     $(this).next("i").removeClass("fa-check-circle").addClass("fa-times-circle-o"); 
 
     } 
 
    } else { 
 
     $label.attr('data-valid', 'valid'); 
 
    } 
 
    } else { 
 
    $label.removeAttr('data-valid'); 
 

 
    } 
 
}); 
 

 

 

 
function validateEmail(email) { 
 
    var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/; 
 

 
    console.log("email: " + re.test(email)); 
 
    return re.test(email); 
 
} 
 

 
$('input[type="text"]').on('keyup', function() { 
 
    var $label = $(this).closest('label'); 
 
    if ($(this).val().trim() != '') { 
 
    if ($(this).is('#email')) { 
 
     if (validateEmail($(this).val())) { 
 
     $label.attr('data-valid', 'valid'); 
 
     $(this).next("i").removeClass("fa-times-circle-o").addClass("fa-check-circle"); 
 

 
     } else { 
 
     $label.attr('data-valid', 'error'); 
 
     $(this).next("i").removeClass("fa-check-circle").addClass("fa-times-circle-o"); 
 
     } 
 
    } else { 
 
     $label.attr('data-valid', 'valid'); 
 
    } 
 
    } else { 
 
    $label.removeAttr('data-valid'); 
 
    } 
 

 
}); 
 

 

 
test = function() { 
 
    if ($("#first_name").val() && $("#last_name").val() && (validateEmail($("#email").val())) && (phoneNumber($("#phone").val())) && $("#phone").val() && $("#city").val() && $("#state").val() && $("#company").val() && $("#comments").val()) { 
 
    $("#sub").removeAttr("disabled") && $("#sub2").removeAttr("disabled"); 
 
    } else { 
 
    $("#sub2").attr("disabled", "disabled") 
 
    } 
 
} 
 

 

 
$('#phone').keydown(function() { 
 
    var self = $(this); 
 
    var removedText = self.val().replace(/\D/, ''); 
 

 
    self.val(removedText); 
 
}); 
 

 

 
$("#contact_form").submit(function(event) { 
 
    console.log("Form success"); 
 
    ("#contact_form"). 
 
    event.preventDefault(); 
 
    return false; 
 
}) 
 

 
$("#sub").submit("click", function(e) { 
 
    e.preventDefault() 
 
}) 
 

 
$("#sub").on("click", function(e) { 
 
    $("#contact_form").remove(); 
 
    $("#thankyou").addClass("success"); 
 
}) 
 

 

 
$("#sub2").submit("click", function(e) { 
 
    e.preventDefault() 
 
}) 
 

 
$("#sub2").on("click", function(e) { 
 
    $("#contact_form").remove(); 
 
    $("#thankyou").addClass("success"); 
 
})

body { 
 
    color: #fff; 
 
    background-color: #30bda6; 
 
    text-align: center; 
 
} 
 

 
form { 
 
    color: #fff; 
 
    background-color: #f78e2a; 
 
    text-align: center; 
 
    font-family: Lato; 
 
} 
 

 
* { 
 
    box-sizing: border-box; 
 
} 
 

 
.form-title { 
 
    font-size: 38px; 
 
    color: #fff; 
 
    font-family: "Lato"; 
 
    letter-spacing: 70px; 
 
} 
 

 
input { 
 
    font-size: 15px; 
 
    height: 48px; 
 
    margin-top: 8px; 
 
    color: #333; 
 
} 
 

 
input[type="tel"] { 
 
    width: 100%; 
 
    padding: 10px; 
 
    background-color: #f9a558; 
 
    border: 1px solid #fff; 
 
    font-size: 15px; 
 
    height: 48px; 
 
    color: #333; 
 
} 
 

 
input[type="text"] { 
 
    width: 100%; 
 
    padding: 10px; 
 
    background-color: #f9a558; 
 
    border: 1px solid #fff; 
 
    font-size: 15px; 
 
    color: #333; 
 
} 
 

 
input:focus { 
 
    background-color: #fff; 
 
} 
 

 
input[type="text"]:focus { 
 
    background-color: #fff; 
 
} 
 

 
input[type="text"]:visited { 
 
    background-color: #fff; 
 
} 
 

 
input[type="tel"]:focus { 
 
    background-color: #fff; 
 
} 
 

 
input[type="tel"]:visited { 
 
    background-color: #fff; 
 
} 
 

 
.container { 
 
    display: flex; 
 
    flex-direction: column; 
 
    padding: 5px 0; 
 
} 
 

 
textarea { 
 
    width: 100%; 
 
    background-color: #f9a558; 
 
    border: 1px solid #fff; 
 
    color: #333; 
 
    font-family: Lato; 
 
} 
 

 
textarea:focus { 
 
    background-color: #fff; 
 
} 
 

 
#co { 
 
    flex-basis: 100%; 
 
    max-width: 100%; 
 
} 
 

 
label:nth-last-child(-n+2) { 
 
    flex-basis: 100%; 
 
    max-width: 100%; 
 
} 
 

 
select, 
 
label { 
 
    height: 50px; 
 
    width: 48%; 
 
    margin: 2% 1%; 
 
    text-align: left; 
 
    font-family: "Lato"; 
 
    font-size: 15px; 
 
} 
 

 
#sub { 
 
    border-radius: 6px; 
 
    width: 120px; 
 
    height: 35px; 
 
    text-transform: uppercase; 
 
    display: block; 
 
    margin-top: 48px; 
 
    font-size: 16px; 
 
    font-family: Lato; 
 
    border: none; 
 
} 
 

 
#sub2 { 
 
    border-radius: 6px; 
 
    width: 120px; 
 
    height: 35px; 
 
    text-transform: uppercase; 
 
    display: block; 
 
    margin-top: 48px; 
 
    font-size: 16px; 
 
    font-family: Lato; 
 
    border: none; 
 
} 
 

 
label { 
 
    position: relative; 
 
} 
 

 
.fa { 
 
    position: absolute; 
 
    bottom: 0; 
 
    right: 0; 
 
    transform: translate(-50%, 65%); 
 
    opacity: 0; 
 
    transition: opacity .5s, color .5s; 
 
} 
 

 
[data-valid] .fa { 
 
    opacity: 1; 
 
    color: #00594C; 
 
} 
 

 
[data-valid="valid"] .fa { 
 
    color: #00594C; 
 
} 
 

 
[data-valid="error"] .fa { 
 
    color: #AB0000; 
 
} 
 

 
.error { 
 
    display: none; 
 
    color: #AB0000; 
 
    font-size: .7em; 
 
    position: absolute; 
 
    left: 10px; 
 
    top: 0; 
 
    transform: translateY(150%); 
 
    font-size: 12px; 
 
    margin-top: 2px; 
 
} 
 

 
[data-valid="error"] .error { 
 
    display: block; 
 
} 
 

 
input#sub2:not([disabled]) { 
 
    background-color: #fff; 
 
    color: #00AB8E; 
 
} 
 

 
input#sub:not([disabled]) { 
 
    background-color: #fff; 
 
    color: #F68D2E; 
 
    ; 
 
} 
 

 
#thankyou { 
 
    display: none; 
 
} 
 

 
#thankyou.success { 
 
    display: block; 
 
    text-align: center; 
 
} 
 

 
#tessellate-page input:focus { 
 
    background-color: #fff !important; 
 
    ; 
 
} 
 

 
#tessellate-page textarea:focus { 
 
    background-color: #fff !important; 
 
    ; 
 
} 
 

 
#tessellate-page input[type="text"] { 
 
    width: 100%; 
 
    padding: 10px; 
 
    background-color: #30bda6; 
 
    border: 1px solid #fff; 
 
    color: #333; 
 
} 
 

 
#tessellate-page input[type="tel"] { 
 
    background-color: #30bda6; 
 
} 
 

 
#tessellate-page textarea { 
 
    background-color: #30bda6; 
 
} 
 

 
#comments_label { 
 
    margin-top: 8px; 
 
} 
 

 
#cap { 
 
    margin-top: 20px; 
 
} 
 

 
@media (max-width: 656px) { 
 
    label { 
 
    width: 98%; 
 
    height: 70px; 
 
    } 
 
    .fa { 
 
    transform: translate(-50%, -45%); 
 
    } 
 
} 
 

 
@media (min-width: 656px) { 
 
    .container { 
 
    flex-direction: row; 
 
    flex-wrap: wrap; 
 
    align-self: flex-start; 
 
    } 
 
    label { 
 
    margin-bottom: 20px; 
 
    } 
 
} 
 

 
label { 
 
    margin-bottom: 48px; 
 
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
 
<form id="contact_form" class="container form-hide" autocomplete="off" autocomplete="false" action="https://webto.salesforce.com/servlet/servlet.WebToLead?encoding=UTF-8" method="POST" style="background-color: #00AB8E"> 
 
    <label>First Name 
 
    <span class="error">Please enter data.</span> 
 
    <input id="first_name" maxlength="40" name="first_name" size="20" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i> 
 
    </label> 
 
    <label>Last Name 
 
    <input id="last_name" maxlength="80" name="last_name" size="20" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i> 
 
    </label> 
 
    <label>Email 
 
    <span class="error">Please enter a valid email address</span> 
 
    <input id="email" maxlength="80" name="email" size="20" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-times-circle-o" aria-hidden="true"></i> 
 
    </label> 
 
    <label>Phone 
 
    <span class="error">Please enter a valid phone number</span> 
 
    <input id="phone" maxlength="80" name="phone" size="20" type="tel" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i> 
 
    </label> 
 
    <label>City 
 
    <input id="city" name="city" maxlength="40" size="20" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i> 
 
    </label> 
 
    <label>State/Province 
 
    <input id="state" maxlength="20" name="state" size="20" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i> 
 
    </label> 
 
    <label id="co">Company 
 
    <input id="company" name="company" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i> 
 
    </label> 
 
    <label>Comments 
 
    <textarea id="comments" name="" cols="30" rows="10" onkeyup="test()" required style="background-color: #30bda6"></textarea> 
 
    <input id="sub2" type="submit" disabled="disabled" value="SUBMIT" /> 
 
    </label> 
 

 
    <div> 
 
    <select hidden="true" id="00N6A000008yXMN" name="00N6A000008yXMN" title="Product Interest"> 
 
     <option value="">--None--</option> 
 
     <option selected="selected" value="Visiant">Visiant</option> 
 
     <option value="Tessellate">Tessellate</option> 
 
    </select> 
 
    <br> 
 

 
    <select hidden="true" id="lead_source" name="lead_source"> 
 
     <option value="">--None--</option> 
 
     <option value="Internal">Internal</option> 
 
     <option value="Trade Show">Trade Show</option> 
 
     <option selected="selected" value="Website">Website</option> 
 
     <option value="Direct Marketing">Direct Marketing</option> 
 
     <option value="Social Media">Social Media</option> 
 
     <option value="Other">Other</option> 
 
    </select> 
 
    <br> 
 
    </div> 
 
</form>