2017-02-03 1 views
0

フォームの「このフォームを送信する」ボタンが、<form ... action="submit form.html" method="get">属性で指定した別のHTMLページに私を連れていかない理由を理解しようとしていますが、私は最初の名前、電子メールアドレス、注文日、JavaScriptを使用してif-elseコードで指定したJavaScriptメッセージは返されません。私のフォーム送信ボタンがクリックされたときに次のページに移動しないのはなぜですか?

ここでは、フォームで使用するJavaScriptコードを示します。

var $ = function (id) 
 
{ 
 
    return document.getElementById(id); 
 
} 
 

 
var submitForm = function() 
 
{ 
 
    var FirstName= $("firstName").value; 
 
    var OrderNumber= $("orderNumber").value; 
 
    var DateOfOrder= $("date_of_order").value; 
 
    var emailAddress= $("email_address").value; 
 
    var isValid=true; 
 
    
 
    if(FirstName !== "Cherry", "Micheal", "Sandra", "Cookie") 
 
    { 
 
     $("firstname_error").firstChild.nodeValue= 
 
     "This person does not exist."; 
 
     isValid=false; 
 
    } else{ $("firstname_error").firstChild.nodeValue="";} 
 
    
 
    if(OrderNumber !== 3134, 4234, 9234, 3566) 
 
    { 
 
    $("orderNumber_error").firstChild.nodeValue="Invalid Order Number."; 
 
    isValid=false; 
 
    } else{ $("orderNumber_error").firstChild.nodeValue="";} 
 

 
    if(DateOfOrder !=='12-07-23', '15-04-24', '16-02-01', '14-01-12') 
 
    { 
 
    $("date_of_order_error").firstChild.nodeValue="Date doesn't exist in 
 
    system"; 
 
    isValid=false; 
 
    } else{ $("date_of_order_error").firstChild.nodeValue="";} 
 
    
 
    if(emailAddress !="[email protected]", "[email protected]", 
 
    "[email protected]", "[email protected]") 
 
    { 
 
    $("email_address_error").firstChild.nodeValue="The email doesn't exist"; 
 
    isValid=false; 
 
    } else{ $("email_address_error").firstChild.nodeValue="";} 
 
    if(isValid) 
 
    { 
 
\t //submit the form if all entries are valid 
 
\t  $("cookie_form").submit(); 
 
    } 
 
} 
 
window.onload = function() 
 
    { 
 
    $("form_submission").onclick = submitForm; \t 
 
    $("email_address").focus(); 
 
    }
body{ 
 
     background-color:#FBFBE8; 
 

 

 
} 
 
/* Tells HTML5 to find the font-type-face that my OS has and then use that for heading 1 
 
    and also centers the first heading */ 
 
         
 
h1{ 
 
      font-family:Arial, Helvetica, sans-serif; 
 
\t  text-align:center;   
 
} 
 

 

 
/* Tells HTML5 to use any of the font-types for my first paragraph in HTML source file 
 
    if one is not available. Also clears some white space 
 
    from the left margin of the paragraph and finally tells it to give that paragraph 
 
    a size of 20 pixels. */ 
 

 
p{ 
 
      font-family:Arial, Helvetica, sans-serif; 
 
      padding: 20px; 
 
      font-size:20px; 
 
} 
 

 

 

 
label{ 
 
\t float: left; 
 
\t width: 11em; 
 
\t text-align: right; 
 
     font-family:Arial, Helvetica, sans-serif; 
 
     color:#800000; 
 

 
} 
 
    input{ 
 
    \t margin-left: 1em; 
 
    \t margin-bottom:.5em; 
 
    } 
 
    span{ 
 
    \t color: red; 
 
    } 
 

 
.field_set_1{ 
 
       border-color: purple; 
 
       border-style: solid; 
 

 

 
} 
 

 
#form_submission{ 
 
        background-color:black; color:white; 
 

 
} 
 

 
legend{ 
 
     font-family:Arial, Helvetica, sans-serif; 
 
      color:blue; 
 
      
 
      
 

 
} 
 

 
/* All of the classes are just for positioning and floating the four 
 
same images around the form input information */ 
 

 
.Wrap1{ 
 
      float:right; 
 
      margin:40px; 
 
      width:200px; 
 
      height:200px; 
 
} 
 
.Wrap2{ 
 
      float:left; 
 
      margin:40px; 
 
      width:200px; 
 
      height:200px; 
 
} 
 

 
.clearfix { 
 
    clear: both; 
 
}
<!DOCTYPE html> 
 
<html> 
 
<head> 
 
<title>Cookie Order Form </title> 
 
<link rel="stylesheet" href="First_Design.css"> 
 
<script src="cookieform.js"></script> 
 
</head> 
 
<body> 
 
<h1>Cookie Order Form</h1> 
 
<p>This form is a cookie order form for customers that purchased cookies from 
 
Daron's Cookies Company and the following below must be filled out in order for each 
 
customer to receive a final message that tells them when their order will be ready.</p> 
 

 

 
<IMG class="Wrap1" SRC="cookie.gif" alt="cookie"> 
 
<IMG class="Wrap2" SRC="cookie.gif" alt="cookie2"> 
 

 

 

 
<!--The customer will be sent to the HTML page named "submit form.html" after they 
 
    click the "Submit this Form" button. The code below does this. --> 
 
<div> 
 
<form id="cookie_form" name="cookie_form" action="submit form.html" method="get"> 
 

 
<fieldset class="field_set_1"> 
 
     <!-- Below sets the title of the form--> 
 
    <legend>Customer Order Form Information:</legend> 
 

 

 
<!-- Creates the first left label to specify what should be placed in the text box 
 
    the the right of the label. The rest below does the same.--> 
 
    
 
    <label for="firstName">First Name:</label> 
 
    <input type="text" id="firstName" name="firstName"> 
 
    <span id="firstname_error">*</span><br> 
 

 
    <label for="orderNumber">Order Number:</label> 
 
    <input type="text" id="orderNumber" name="orderNumber"> 
 
    <span id="orderNumber_error">*</span><br> 
 
    
 
    <label for="date_of_order">Date of Order:</label> 
 
    <input type="text" id="date_of_order" name="date_of_order"> 
 
    <span id="date_of_order_error">*</span><br> 
 

 
    <label for="email_address">Email Address:</label> 
 
    <input type="text" id="email_address" name="email_address"> 
 
    <span id="email_address_error">*</span><br> 
 

 
    <label>&nbsp;</label> 
 
    
 
    <input type="button" id="form_submission" value="Submit this Form"> 
 
    </fieldset> 
 

 
    </form> 
 

 
</div> 
 
<div class="clearfix"> 
 
</div> 
 
<IMG class="Wrap1" SRC="cookie.gif" alt="cookie"> 
 
<IMG class="Wrap2" SRC="cookie.gif" alt="cookie2"> 
 

 

 
</body> 
 

 

 

 
</html>

+0

私はちょうどスコット・マーカスをしました – Joe

答えて

2

あり、あなたのコードで間違って非常に多くの事があったが、最大のは、それぞれが同じ構造続いていること、あなたの検証テストだった:「あなたはでき

if(FirstName !== "Cherry", "Micheal", "Sandra", "Cookie") 

をt firstNameをカンマで区切った値のリストに対してテストします。それぞれが個別にテストする必要があります。また、それらの間化合物論理演算子を使用する必要があります。

if(FirstName !== "Cherry" && FirstName !== "Micheal" && 
    FirstName !== "Sandra" && FirstName !== "Cookie") 

あなたはまた、むしろ、すべての検証は、いくつかの状況でバイパスさせることができ、送信ボタン、より、標準のボタンを使用していましたENTERキーが押されたとき。送信ボタンを常に使用し、submitイベントで検証してください。

インラインコメントのための私の再構成され、再構成されたコードソリューションを参照してください。

ザ・スタックオーバーフローのスニペット環境(下)(それがサンドボックスですので)フォーム では動作しませんが、同じコードがhereを実行することができます。

// W3C DOM Event model instead of node event properties: 
 
window.addEventListener("DOMContentLoaded", function() { 
 
    
 
    // Since we're now using the submit event, we hook into that event: 
 
    // Use camelCase for JavaScript identifiers 
 
    var form = getElem("cookieForm"); 
 
    form.addEventListener("submit", validate); \t 
 
    
 
    getElem("emailAddress").focus(); 
 
    
 
    // Opening curly braces should appear on the same line as the declaration they open 
 
    // Dollar signs are legal identifiers, but usually denote libraries (like JQuery) and 
 
    // can be confusing if you are not using those libraries. 
 
    function getElem (id) { 
 
    return document.getElementById(id); 
 
    } 
 

 
    function validate(evt) { 
 
    var inputs = document.querySelectorAll(".validate"); 
 
    
 
    // It's better logic to assume false, which avoids "false positives" 
 
    var isValid = false; 
 
    
 
    // Loop through the fields that need validation 
 
    for (var i = 0; i < inputs.length; ++i){ 
 
    
 
     var message = ""; // This is the potential error message 
 
     
 
     // Validate the input according to its id: 
 
     switch (inputs[i].id) { 
 
      case "firstName" : 
 
      // You can't check a single value against a comma-separated list, you have to check 
 
      // it against each value you are interested in: 
 
      isValid = (inputs[i].value !== "Cherry" && inputs[i].value !== "Micheal" && 
 
         inputs[i].value !== "Sandra" && inputs[i].value !== "Cookie") ? false : true; 
 
      message = (!isValid) ? "This person does not exist." : ""; 
 
      break; 
 
      case "orderNumber" : 
 
      // Remember, HTML form fields always return strings, not numbers 
 
      isValid = (inputs[i].value !== "3134" && inputs[i].value !== "4234" && 
 
         inputs[i].value !== "9234" && inputs[i].value !== "3566") ? false : true; 
 
      message = (!isValid) ? "Invalid Order Number." : ""; 
 
      break; 
 
      case "dateOfOrder" : 
 
      isValid = (inputs[i].value !=='12-07-23' && inputs[i].value !== '15-04-24' && 
 
         inputs[i].value !== '16-02-01' && inputs[i].value !== '14-01-12') ? false : true; 
 
      message = (!isValid) ? "Date doesn't exist in system" : ""; 
 
      break; 
 
      case "emailAddress" : 
 
      isValid = (inputs[i].value != "[email protected]" && 
 
         inputs[i].value !== "[email protected]" && 
 
         inputs[i].value !== "[email protected]" && 
 
         inputs[i].value !== "[email protected]") ? false : true; 
 
      message = (!isValid) ? "The email doesn't exist" : ""; 
 
      break;   
 
     } 
 
     
 
     // Update the UI with the correct message: 
 
     inputs[i].nextElementSibling.textContent = message; 
 
    } 
 
    
 
    if(!isValid) { 
 
\t  // cancel the submission if we're invalid 
 
\t  evt.preventDefault(); // Cancel the form's submission 
 
     evt.stopPropagation(); // Don't bubble the event 
 
    } 
 
    } 
 
    
 
});
body{ 
 
     background-color:#FBFBE8; 
 
} 
 

 
/* Tells HTML5 to find the font-type-face that my OS has and then use that for heading 1 
 
    and also centers the first heading */ 
 

 
h1{ 
 
    font-family:Arial, Helvetica, sans-serif; 
 
    text-align:center;   
 
} 
 

 

 
/* Tells HTML5 to use any of the font-types for my first paragraph in HTML source file 
 
    if one is not available. Also clears some white space 
 
    from the left margin of the paragraph and finally tells it to give that paragraph 
 
    a size of 20 pixels. */ 
 

 
p { 
 
    font-family:Arial, Helvetica, sans-serif; 
 
    padding: 20px; 
 
    font-size:20px; 
 
} 
 

 
label{ 
 
\t float: left; 
 
\t width: 11em; 
 
\t text-align: right; 
 
     font-family:Arial, Helvetica, sans-serif; 
 
     color:#800000; 
 

 
} 
 
    
 
input{ 
 
    \t margin-left: 1em; 
 
    \t margin-bottom:.5em; 
 
} 
 

 

 

 
span { 
 
    \t color: red; 
 
} 
 

 
.field_set_1{ 
 
       border-color: purple; 
 
       border-style: solid; 
 
} 
 

 
#form_submission{ background-color:black; color:white; } 
 

 
legend{ 
 
    font-family:Arial, Helvetica, sans-serif; 
 
    color:blue; 
 
} 
 

 
/* All of the classes are just for positioning and floating the four 
 
same images around the form input information */ 
 

 
.Wrap1{ 
 
      float:right; 
 
      margin:40px; 
 
      width:200px; 
 
      height:200px; 
 
} 
 
.Wrap2{ 
 
      float:left; 
 
      margin:40px; 
 
      width:200px; 
 
      height:200px; 
 
} 
 

 
.clearfix { 
 
    clear: both; 
 
}
<form id="cookieForm" name="cookieForm" action="submit form.html" method="get"> 
 

 
    <fieldset class="field_set_1"> 
 
    <!-- Below sets the title of the form--> 
 
    <legend>Customer Order Form Information:</legend> 
 

 

 
    <!-- Creates the first left label to specify what should be placed in the text box 
 
     the the right of the label. The rest below does the same.--> 
 
    
 
    <label for="firstName">First Name:</label> 
 
    <input type="text" id="firstName" name="firstName" class="validate"> 
 
    <span id="firstname_error">*</span><br> 
 

 
    <label for="orderNumber">Order Number:</label> 
 
    <input type="text" id="orderNumber" name="orderNumber" class="validate"> 
 
    <span id="orderNumber_error">*</span><br> 
 
    
 
    <label for="dateOfOrder">Date of Order:</label> 
 
    <input type="text" id="dateOfOrder" name="dateOfOrder" class="validate"> 
 
    <span id="dateOfOrder_error">*</span><br> 
 

 
    <label for="emailAddress">Email Address:</label> 
 
    <input type="text" id="emailAddress" name="emailAddress" class="validate"> 
 
    <span id="emailAddress_error">*</span><br> 
 

 
    <label>&nbsp;</label> 
 
    
 
    <!-- Always use a "submit" button to initiate form submission, even 
 
     if there will be form validation         --> 
 
    <input type="submit" id="form_submission" value="Submit this Form"> 
 
    </fieldset> 
 

 
</form>

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