Created
March 30, 2013 09:38
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localstorage sample
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8" /> | |
<title>localStorage Sample</title> | |
<style> | |
form{ | |
margin-bottom:20px; | |
} | |
table{ | |
margin-top:20px; | |
} | |
th{ | |
min-width:100px; | |
} | |
</style> | |
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script> | |
</head> | |
<body> | |
<header> | |
<h1>localStorageサンプル</h1> | |
</header> | |
<div id="main"> | |
<form> | |
Key: | |
<input id="textkey" type="text" /> | |
Value: | |
<input id="textdata" type="text" /> | |
</form> | |
<button id="save_btn" >保存</button> | |
<button id="display_btn" >表示</button> | |
<button id="clear_btn" >全て削除</button> | |
<table border="1"> | |
<tr> | |
<th>key</th> | |
<th>value</th> | |
</tr> | |
<tbody id="list"></tbody> | |
</table> | |
</div> | |
<script type="text/javascript"> | |
var ls = localStorage; | |
//init | |
$(document).ready(viewStorage); | |
//イベント登録 | |
$("#save_btn").on("click", setlocalStorage); | |
$("#display_btn").on("click", viewStorage); | |
$("#clear_btn").on("click", removeallStorage); | |
// localStorageへの格納 | |
function setlocalStorage() { | |
var key = $("#textkey").val(); | |
var value = $("#textdata").val(); | |
// key,valueに値が入っているかチェック | |
if (key && value) { | |
ls.setItem(key, value); | |
} | |
} | |
// localStorageからのデータの取得と表示 | |
function viewStorage() { | |
//いったん中身を空にする | |
$("#list").empty(); | |
// localStorageすべての情報の取得 | |
for (var i=0; i < ls.length; i++) { | |
var _key = ls.key(i); | |
// 登録されているkey, valueを順に取得して表示 | |
var tr = $("<tr></tr>"); | |
var td1 = $("<td></td>"); | |
var td2 = $("<td></td>"); | |
$("#list").append(tr); | |
tr.append(td1).append(td2); | |
td1.html(_key); | |
td2.html(ls.getItem(_key)); | |
} | |
} | |
// localStorageからすべて削除 | |
function removeallStorage() { | |
ls.clear(); | |
location.reload(); | |
} | |
</script> | |
</body> | |
</html> |
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