<!DOCTYPE html>
<html>
<body>
<script>
// validate thether this browser support storage
if(window.localStorage){
console.log("support local storage");
}
if(window.sessionStorage){
console.log("support session storage");
}
addEntryForSessionStorage();
addEntryForLocalStorage();
printAllLocalStoreInfo();
printAllSessionStoreInfo();
/* ============================== session storage ============================== */
function addEntryForSessionStorage(){
var key = window.sessionStorage.length+1;
var value = parseInt(Math.random()*1000);
window.sessionStorage.setItem(key,value);
}
function printAllSessionStoreInfo(){
console.log("all session storage informaton is below.");
var sessionStorage = window.sessionStorage;
for(var i=0;i<sessionStorage.length;i++){
var key = sessionStorage.key(i);
var value = sessionStorage.getItem(key);
console.log(key+":"+value);
}
}
/* ============================== local storage ============================== */
function addEntryForLocalStorage(){
var key = window.localStorage.length+1;
var value = parseInt(Math.random()*1000);
window.localStorage.setItem(key,value);
}
function printAllLocalStoreInfo(){
console.log("all local storage informaton is below.");
var localStorage = window.localStorage;
for(var i=0;i<localStorage.length;i++){
var key = localStorage.key(i);
var value = localStorage.getItem(key);
console.log(key+":"+value);
}
}
</script>
</body>
</html>原文：http://antlove.blog.51cto.com/10057557/1675258