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我有很多使用java脚本来验证应用程序表单的问题。即使它无效，Javascript表单也会提交
我的代码现在的样子，它仍然允许我提交表格，即使有错误。 我试图使用的方法是使每个函数在遇到错误时返回false，但它不起作用，我不确定原因。
FIXED，谢谢！
"use strict";
var errMsg = "";
/*get variables from form and check rules*/
function validate(){
var result = true;
result = validateDOB() && validatePostCode() && validateTextBox() && validateJobReferenceNumber();
if (errMsg != ""){ //only display message box if there is something to show
alert(errMsg);
}
return result;
}
function validateDOB(){
var dob = document.forms["regForm"]["dob"].value;
var age = getAge(dob);
// var error = document.getElementById("spandob");
var pattern =/^([0-9]{2})\/([0-9]{2})\/([0-9]{4})$/;
\t if (dob == null || dob == "" || !pattern.test(dob) || age < 15 || age > 80) {
errMsg += "Please enter a valid date of birth\n";
return false;
}
else {
return true;
}
}
function getAge(dob) { /* find age from today's date minus entered DOB*/
var today = new Date();
var birthDate = new Date(dob);
var age = today.getFullYear() - birthDate.getFullYear();
var m = today.getMonth() - birthDate.getMonth();
if (m < 0 || (m === 0 && today.getDate() < birthDate.getDate())) {
age--;
}
return age;
}
function validatePostCode(){
\t var postcode = document.forms["regForm"]["postcode"].value;
\t var state = document.forms["regForm"]["state"].value;
\t var error = document.getElementById("spanPostcode");
\t switch (state){
\t \t case "VIC":
\t \t if (postcode.charAt(0) !== 3 || postcode.charAt(0) !== 8){
\t \t \t error.innerhtml = "Please enter a valid post code for VIC";
\t \t \t return false;
\t \t }
\t \t break;
\t \t case "NSW":
\t \t if (postcode.charAt(0) !== 1 || postcode.charAt(0) !== 2){
\t \t \t errMsg += "Please enter a valid post code for NSW"
\t \t \t return false;
\t \t }
\t \t break;
\t \t case "QLD":
\t \t if (postcode.charAt(0) !== 4 || postcode.charAt(0) !== 9){
\t \t \t errMsg += "Please enter a valid post code for QLD"
\t \t \t return false;
\t \t }
\t \t break;
\t \t case "NT":
\t \t if (postcode.charAt(0) !== 0){
\t \t \t errMsg += "Please enter a valid post code for NT"
\t \t \t return false;
\t \t }
\t \t break;
\t \t case "WA":
\t \t if (postcode.charAt(0) !== 6){
\t \t \t errMsg += "Please enter a valid post code for WA"
\t \t \t return false;
\t \t }
\t \t break;
\t \t case "SA":
\t \t if (postcode.charAt(0) !== 5){
\t \t \t errMsg += "Please enter a valid post code for SA"
\t \t \t return false;
\t \t }
\t \t break;
\t \t case "TAS":
\t \t if (postcode.charAt(0) !== 7){
\t \t \t errMsg += "Please enter a valid post code for TAS"
\t \t \t return false;
\t \t }
\t \t break;
\t \t case "ACT":
\t \t if (postcode.charAt(0) !== 0) {
\t \t \t errMsg += "Please enter a valid post code for ACT"
\t \t \t return false;
\t \t }
\t \t break;
\t \t default:
\t \t errMsg += "Please enter a valid post code";
\t \t return false;
\t }
\t return true;
}
function validateTextBox(){
\t var checkboxOtherSkills = document.getElementById("skills[]").getElementsByTagName("input");
\t var textbox = document.forms["regForm"]["otherSkills"].value;
\t if (checkboxOtherSkills[oSkills].checked){
\t \t if (textbox.length < 1){
\t \t \t errMsg +="'Other Skills' has been selected but not filled out.";
\t \t \t return false;
\t \t }
\t }
\t return true;
}
function validateJobReferenceNumber(){
\t var refnumb = document.getElementById("jobrefno");
\t var pattern = (/([a-zA-Z0-9_-]){6}$/);
\t if (!pattern.test(refnumb)){
\t \t errMsg += "6 alphanumeric characters only"
\t \t return false;
\t }
\t return true;
}
function init(){
\t var regForm = document.getElementById("regForm");// get ref to the HTML element
\t regForm.onsubmit = validate;
}
window.onload = init;<form id="regForm" method="post" action="http://mercury.ict.swin.edu.au/it000000/formtest.php" novalidate="novalidate">
<fieldset><legend>Application:</legend>
<!--Job Reference Number-->
<p><label for="jobrefno">Job Reference Number</label>
<input type="text" name="jobrefno" id="jobrefno" pattern="[a-zA-Z0-9]{6}" title="Must be 6 characters" required="required" /></p>
<!--First Name-->
<p><label for="firstName">First Name</label>
<input type="text" name="firstName" id="firstName" pattern="[a-zA-Z]+${1,25}" maxlength="25" title="Max Length 25" required="required" /></p>
<!--Last Name-->
<p><label for="lastName">Last Name</label>
<input type="text" name="lastName" id="lastName" pattern="[a-zA-Z ]+${1,25}" maxlength="25" title="Max Length 25" required="required" /></p>
<!--Date of Birth-->
<p><label for="dob">Date of Birth</label>
<input type="text" name="dob" id="dob" required="required" placeholder="dd/mm/yyyy"/></p>
<!--Gender-->
<fieldset><legend>Gender</legend>
<p><label> <input type="radio" name="gender" value="Unspecified" checked="checked"/>Prefer not to say</label>
<label><input type="radio" name="gender" value="Female" />Female</label>
<label><input type="radio" name="gender" value="Male" />Male</label></p></fieldset>
<!--Street Address-->
<p><label for="streetAddress">Street Address</label>
<input type="text" name="streetAddress" id="streetAddress" maxlength="40" title="Max Length 40" required="required" /></p>
<!--Suburb-->
<p><label for="suburb">Suburb</label>
<input type="text" name="suburb" id="suburb" maxlength="40" title="Max Length 40" required="required" /></p>
<!--State-->
<p><label for="state">State</label>
<select required ="required" name="state" id="state">
<option value="" selected="selected">Please Select</option>
<option value="VIC">VIC</option>
<option value="NSW">NSW</option>
<option value="QLD">QLD</option>
<option value="NT">NT</option>
<option value="WA">WA</option>
<option value="SA">SA</option>
<option value="TAS">TAS</option>
<option value="ACT">ACT</option>
</select>
</p>
<!--Postcode-->
<p><label for="postcode">PostCode</label><span id="spanPostcode"></span>
<input type="text" name="postcode" id="postcode" pattern="[0-9]{4}" maxlength="4" title="4 Digits only" required="required" />
<!--Email address-->
<p><label for="email">Email</label>
<input type="email" name="email" id="email" placeholder="[email protected]" pattern="[a-z0-9._%+-][email protected][a-z0-9.-]+\.[a-z]{2,4}$" title="Please use correct format: eg. [email protected]" required="required" /></p>
<!--Phone Number-->
<p><label for="phoneNumber">Phone Number</label>
<input type="text" name="phoneNumber" id="phoneNumber" pattern="[0-9]+{8,12}" maxlength = "12" title="8-12 Digits" required="required" />
</p>
<!--Skill List-->
<label>Skills List</label><br>
<label><input type="checkbox" name="skills[]" value="HTML5" checked="checked" />HTML5</label><br>
<label><input type="checkbox" name="skills[]" value="CSS" />CSS</label><br>
<label><input type="checkbox" name="skills[]" value="JavaScript">JavaScript</label><br>
<label><input type="checkbox" name="skills[]" value="Excel" />Excel</label><br>
<label><input type="checkbox" name="skills[]" value="MySQL" />MySQL</label><br>
<label><input type="checkbox" name="skills[]" value="Administration" />Administration</label><br>
<label><input type="checkbox" name="skills[]" value="12MoExp" />12 Months Experience</label><br>
<label><input type="checkbox" name="skills[]" id ="oSkills" value="OtherSkills" />Other Skills...</label><br>
<!--Other Skills-->
<p><label for="otherSkills">Other Skills</label><br>
<textarea id="otherSkills" name="otherSkills" rows="10" cols="50" placeholder="Please tell us about any other skills you have that may benefit you in this position"></textarea></p>
</fieldset>
<p>
<input type= "submit" value="Apply"/>
<input type= "reset" value="Reset Form"/></p>
</form>
您声明'result'变量，但你从来没有给它一个值。你可以调用各种函数，但是所有的结果都会被丢弃。除此之外（并且与你所说的相反）并不是所有的函数都返回true/false值。 –
我以为我在开始时给它一个价值？ 我意识到并不是所有的都会返回一个值。如何存储函数调用的结果？ result = function（）; ？ – denpa
是，或者在这种情况下（简化）：'result = function1（）|| function2（）||功能3（）;'。只要确保它们都返回布尔值。 –