○ 持續時間不會因為中斷瀏覽器而自動終止
○ 同一個瀏覽器的所有分頁都會使用同一個localStorage
○ 存取空間有5M 比cookie大上許多
○ 例：Anden Hud 的購物車紀錄
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<HTML>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="ccsName.css">
<script src="6_new.js"></script>
<title>Cookie</title>
</head>
<body>
<button onclick="doFirst();">Show localStorage(username)</button>
</body>
</html>
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<JavaScript>
function doFirst(){
if(window.localStorage["username"]== null){
var uname = prompt('Input you name','');
localStorage["username"]= uname;
}else{
alert(localStorage["username"]);
}//end of if
}
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