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Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
Web storage
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Web storage

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Web storageについて調べてみました

Web storageについて調べてみました

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  • Session Storage
    サイトは、セッション・ストレージにデータを加えることができ、そのウィンドウで開かれている同じサイトのどんなページからでもアクセスすることができるようになります。

























  • Transcript

    • 1. key/value
    • 2. transaction() 1 : 2 : 3 :
    • 3. executeSql() 1 : 2 : 3 :
    • 4. dev.w3.org/html5/webdatabase This specification has reached an impasse
    • 5. key/value Indexed Database
    • 6. Indexed Database API
    • 7. // DB var request = window.indexedDB.open( "CandyDB", "My candy store database"); request.onsuccess = function(event) { var db = event.result; if (db.version != "1") { // } else { // loadData(db); } };
    • 8. // var createdObjectStoreCount = 0; var objectStores = [ { name: "kids", keyPath: "id", autoIncrement: true }, { name: "candy", keyPath: "id", autoIncrement: true }, { name: "candySales", keyPath: "", autoIncrement: true } ]; function objectStoreCreated(event) { if (++createdObjectStoreCount == objectStores.length) { db.setVersion("1").onsuccess = function(event) { loadData(db); }; } } for (var index = 0; index < objectStores.length; index++) { var params = objectStores[index]; // DB request = db.createObjectStore(params.name, params.keyPath, params.autoIncrement); // request.onsuccess = objectStoreCreated; }
    • 9. var kids = [ { name: "Anna" }, { name: "Betty" }, { name: "Christine" } ]; // DB var request = window.indexedDB.open( "CandyDB", "My candy store database"); request.onsuccess = function(event) { var objectStore = event.result.objectStore("kids"); for (var index = 0; index < kids.length; index++) { var kid = kids[index]; // objectStore.add(kid).onsuccess = function(event) { document.getElementById("display").textContent = "Saved record for "+kid.name+" with id "+event.result; }; } };
    • 10. // DB var request = window.indexedDB.open( "CandyDB", "My candy store database"); request.onsuccess = function(event) { // request = event.result.objectStore("kids").openCursor(); request.onsuccess = function(event) { var cursor = event.result; // cursor null if (!cursor) { return; } var element = document.createElement("div"); element.textContent = cursor.value.name; document.getElementById("kidList").appendChild(element); cursor.continue(); }; };
    • 11. Web Storage http://dev.w3.org/html5/webstorage/Overview.html Web SQL Database http://dev.w3.org/html5/webdatabase/ Indexed Database http://www.w3.org/TR/IndexedDB/ Firefox 4 Indexed Database API https://dev.mozilla.jp/hacksmozillaorg/firefox-4-an-early-walk-through-of- indexeddb/ Simple to-do list with jQuery and local storage. http://www.tuttoaster.com/tag/html5/

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