使用jquery讀取html5 localstorage的值的方法
2024-05-06 14:20:06
供稿：網友
在HTML 5中，localstorage是個不錯的東西，在支持localstorage的瀏覽器中， 能持久化用戶表單的輸入，即使關掉瀏覽器，下次重新打開瀏覽器訪問，也能讀出其值， 下面給出的例子是使用jquery 在每次表單加載的時候，讀localstorage的值，而在表單每次提交時則清楚其值的例子
首先是一個表單：
代碼如下:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>HTML5 Local Storage Example</title>
<!-- include Bootstrap CSS for layout -->
<link rel="stylesheet">
</head>
<body>
<div class="container">
<h1>HTML5 Local Storage Example</h1>
<form method="post" class="form-horizontal">
<fieldset>
<legend>Enquiry Form</legend>
<div class="control-group">
<label class="control-label" for="type">Type of enquiry</label>
<div class="controls">
<select name="type" id="type">
<option value="">Please select</option>
<option value="general">General</option>
<option value="sales">Sales</option>
<option value="support">Support</option>
</select>
</div>
</div>
<div class="control-group">
<label class="control-label" for="name">Name</label>
<div class="controls">
<input class="input-xlarge" type="text" name="name" id="name" value="" maxlength="50">
</div>
</div>
<div class="control-group">
<label class="control-label" for="email">Email Address</label>
<div class="controls">
<input class="input-xlarge" type="text" name="email" id="email" value="" maxlength="150">
</div>
</div>
<div class="control-group">
<label class="control-label" for="message">Message</label>
<div class="controls">
<textarea class="input-xlarge" name="message" id="message"></textarea>
</div>
</div>
<div class="control-group">
<div class="controls">
<label class="checkbox">
<input name="subscribe" id="subscribe" type="checkbox">
Subscribe to our newsletter
</label>
</div>
</div>
</fieldset>
<div class="form-actions">
<input type="submit" name="submit" id="submit" value="Send" class="btn btn-primary">
</div>
</form>
</div>
然后是js部分代碼：
代碼如下:
<script src="https://code.jquery.com/jquery-latest.js"></script>
<script>
$(document).ready(function () {
/*
* 判斷是否支持localstorage
*/
if (localStorage) {
/*
* 讀出localstorage中的值
*/
if (localStorage.type) {
