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Forked from JamesMessinger/IndexedDB101.js
Created March 23, 2018 00:33
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Very Simple IndexedDB Example
// This works on all devices/browsers, and uses IndexedDBShim as a final fallback
var indexedDB = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB || window.shimIndexedDB;
// Open (or create) the database
var open = indexedDB.open("MyDatabase", 1);
// Create the schema
open.onupgradeneeded = function() {
var db = open.result;
var store = db.createObjectStore("MyObjectStore", {keyPath: "id"});
var index = store.createIndex("NameIndex", ["name.last", "name.first"]);
};
open.onsuccess = function() {
// Start a new transaction
var db = open.result;
var tx = db.transaction("MyObjectStore", "readwrite");
var store = tx.objectStore("MyObjectStore");
var index = store.index("NameIndex");
// Add some data
store.put({id: 12345, name: {first: "John", last: "Doe"}, age: 42});
store.put({id: 67890, name: {first: "Bob", last: "Smith"}, age: 35});
// Query the data
var getJohn = store.get(12345);
var getBob = index.get(["Smith", "Bob"]);
getJohn.onsuccess = function() {
console.log(getJohn.result.name.first); // => "John"
};
getBob.onsuccess = function() {
console.log(getBob.result.name.first); // => "Bob"
};
// Close the db when the transaction is done
tx.oncomplete = function() {
db.close();
};
}
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