javascript - 单击按钮后在页面之间传输数据
问题描述
我正在创建一个网页,用户可以在其中申请公司的职位。我的目标是,一旦单击某个工作的链接,那么工作参考号就已经填写了适当的数据。但是文本框却充满了“未定义”
用于显示作业的页面和申请表的 JavaScript 文件 - 不要担心 validate 变量,我不想复制整个文件。
function storeJobNumber(jobRefNumber) {
var da = document.getElementById("DA");
var jd = document.getElementById("JD");
var qa = document.getElementById("QA");
var fed = document.getElementById("FED");
if (da.onclick) {
localStorage.setItem("jobNumber", jobRefNumber) == "188345"
}
if (jd.onclick) {
localStorage.setItem("jobNumber", jobRefNumber) == "188386"
}
if (qa.onclick) {
localStorage.setItem("jobNumber", jobRefNumber) == "188323"
}
if (fed.onclick) {
localStorage.setItem("jobNumber", jobRefNumber) == "188357"
}
}
function job_apply(){
if (localStorage.getItem("jobNumber") !== null) {
var jobNumber = document.getElementById("jobNumber")
jobNumber.value = localStorage.getItem("jobNumber");
}
}
function init() {
if (document.getElementById("applypage")!=null) {
var regForm = document.getElementById("regform");
job_apply();
regForm.onsubmit = validate;
}
else if (document.getElementById("jobspage") !=null) {
storeJobNumber();
}
}
window.onload = init;
申请表格 HTML
<!DOCTYPE html>
<html Lang="en">
<head>
<meta charset="utf-8" />
<meta name="description" content="CWA HELP DESK" />
<meta name="keywords" content="HTML, CWA, Help, Desk" />
<meta name="author" content ="Harry Keys" />
<title>Application Form</title>
<link href="style/style.css" rel="stylesheet" type="text/css">
<script src="apply.js"></script>
</head>
<body id="applypage">
<form id="regform" method="post" action="http://mercury.swin.edu.au/it000000/formtest.php" novalidate="novalidate">
<img src="images/logo.png" alt="Company Logo" />
<h1> Job Application Form </h1>
<fieldset>
<p><label for="jobNumber">Job Reference Number</label>
<input type="text" onkeyup="this.value=this.value.replace(/[^\d]/,'')" name="jobNumber" id="jobNumber" maxlength="5" size="7" required="required" readonly/>
</p>
包含可用作业的 HTML 文件
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="description" content="Assignment Page 1" />
<meta name="keywords" content="Home, Page, Details, Company" />
<meta name="author" content ="Harry Keys" />
<title>Available Jobs </title>
<link href="style/style.css" rel="stylesheet" type="text/css">
<script src="apply.js"></script>
</head>
<body id="jobspage">
<a href="index.html" class="button">Home</a>
<a href="jobs.html" class="button">Jobs</a>
<a href="about.html" class="button">About</a>
<a href="Enhancements.html" class="button">Enhancements</a>
<h1>Hartley Studios <img src="images/logo.png" alt="Company Logo" class="right"/> </h1>
<hr>
<section>
<fieldset class="JobsF">
<img src="images/Database.jpg" alt="Database Analyst"/>
<h3> Database Analyst </h3>
<p> The purpose of a Database Analyst is to Maintain data storage and access by designing physical databases...</p>
<a href="#DA" class="button">Discover</a>
<a href="apply.html" class="button" id="DA">Apply</a>
</fieldset>
<fieldset class="JobsF">
<img src="images/Software.jpg" alt="Software Developer"/>
<h3> Java Developer </h3>
<p> The purpose of a Java Developer is generally responsible for the development, design and implementation of Java products...</p>
<a href="#SD" class="button">Discover</a>
<a href="apply.html" class="button" id="JD">Apply</a>
</fieldset>
<fieldset class="JobsF">
<img src="images/QA.jpg" alt="QA Engineer"/>
<h3> QA Engineer </h3>
<p> The purpose of a QA Engineer is to put programs through rigorous tests, In an attempt to locate any areas of weakness...</p>
<a href="#QA" class="button">Discover</a>
<a href="apply.html" class="button" id="QA">Apply</a>
</fieldset>
<fieldset class="JobsF">
<img src="images/FED.jpg" alt="Front End Developers"/>
<h3> Front End Developer </h3>
<p> The front end of a website is the part users see and interact with – they play critical part of any business...</p>
<a href="#FED" class="button">Discover</a>
<a href="apply.html" class="button" id="FED">Apply</a>
</fieldset>
</section>
当用户单击 Database Analyst 的应用按钮时,文本框“jobNumber”应包含数字 188345,但它不包含任何内容或有时包含“未定义”
解决方案
的语法 localStorage.setItem
是 .ItlocalStorage.setItem(keyname, value)
应该像localStorage.setItem("jobNumber", "188345")
而不是localStorage.setItem("jobNumber", jobRefNumber) == "188345"
.Ref https://developer.mozilla.org/en-US/docs/Web/API/Web_Storage_API/Local_storage
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