Web サイトにjstorageを実装しようとしています。私は JavaScript が初めてなので、ここで助けが必要です。
jstorageは、保存された行ごとにKeyとを指定する必要があります。Value
Key自動インクリメント値またはタイムスタンプのどちらか簡単な方を自動的に入力したいと思います。値は一意である必要があります。
コード全体は次のとおりです。
<!DOCTYPE html>
<html>
<head>
<title>jStorage - simple JavaScript plugin to store data locally</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<style type="text/css">
body{
font-family: Sans-serif;
font-size: 13px;
color: #333;
background: blue;
}
a {
color: red;
}
table{
border: 1px solid white;
;
}
h1{
padding-top: 50px;
font-size: 26px;
font-weight: bold;
border-bottom: 3px solid #CDEB8B;
}
h2{
font-size: 18px;
font-weight: bold;
border-top: 1px solid #EEE;
border-bottom: 3px solid #CDEB8B;
margin-top: 20px;
padding-top: 20px;
}
h3{
font-size: 14px;
font-weight: bold;
color: red;
}
td{
padding: 3px;
border-right: 1px solid #CDEB8B;
border-bottom: 1px solid #CDEB8B;
}
thead{
background: url(img/gradientform.png) repeat-x; ;
color: white;
}
.container{
width: 190px;
margin: 10px auto;
}
.delimg {
background: url(img/details_close.png) no-repeat;
width: 20px;
height: 20px;
}
.addimg {
background: url(img/details_open.png) no-repeat;
width: 20px;
height: 20px;
}
</style>
<script src="js/jquery.js"></script>
<script src="static/jquery.json-2.3.js"></script>
<script src="static/jstorage.js"></script>
<script>
function insert_value(){
var row = document.createElement("tr"),
key = document.getElementById('key').value,
val = document.getElementById('val').value;
if(!key){
alert("KEY NEEDS TO BE SET!");
document.getElementById('key').focus();
return;
}
$.jStorage.set(key, val);
document.getElementById('key').value = "";
document.getElementById('val').value = "";
reDraw();
}
function get_value(){
var value = $.jStorage.get(document.getElementById("key2").value);
alert(value);
document.getElementById('key2').value = "";
}
function reDraw(){
var row, del, index;
var rows = document.getElementsByTagName("tr");
for(var i=rows.length-1; i>=0; i--){
if(rows[i].className == "rida"){
rows[i].parentNode.removeChild(rows[i]);
}
}
index = $.jStorage.index();
for(var i=0; i<index.length;i++){
row = document.createElement("tr");
row.className = "rida";
var t = document.createElement("td");
t.innerHTML = index[i];
row.appendChild(t);
t = document.createElement("td");
t.innerHTML = $.jStorage.get(index[i]);
row.appendChild(t);
del = document.createElement("a");
del.href = "javascript:void(0)";
del.innerHTML = "<div class='delimg'></div>";
(function(i){
del.onclick = function(){
$.jStorage.deleteKey(i);
reDraw();
};
})(index[i])
t = document.createElement("td");
t.appendChild(del)
row.appendChild(t);
document.getElementById("tulemused").appendChild(row);
}
}
</script>
<!-- Exception Hub start -->
<script type="text/javascript">
var ehHost = (("https:" == document.location.protocol) ? "https://" : "http://");
document.write(unescape("%3Cscript src='" + ehHost + "js.exceptionhub.com/javascripts/eh.js' type='text/javascript'%3E%3C/script%3E"));
</script>
<script>
ExceptionHub.setup("b83fb652800fa143596deb6600fd9a2d", 116, 'production');
</script>
<!-- Exception Hub end -->
</head>
<body>
<div class="container">
<table cellspacing="0" cellpadding="0" style="width: 100%">
<thead>
<tr><td width="120">KEY</td><td>VALUE</td><td width="50"> </td></tr>
</thead>
<tbody id="tulemused"></tbody>
<tfoot>
<tr>
<td><input type="text" id="key" name="key" value="" style="width: 110px;" /></td>
<td><input type="text" id="val" name="val" value="" style="width: 98%" /></td>
<td><a href="javascript:insert_value()"><div class="addimg"></div></a></td>
</tr>
<tr>
<td><input type="text" id="key2" name="key2" value="" style="width: 110px;" /></td>
<td>Clicking "GET" alerts the value for provided key with the method <em>$.jStorage.get(key)</em></td>
<td><a href="javascript:get_value()">GET</a></td>
</tr>
</tfoot>
</table>
<script>reDraw()</script>
</body>
</html>