Versioning in IndexedDB allows for control over database structure modifications. Each database has a version number that increments after structural changes.
Code Example :
// Open the database
const dBOpenRequest = window.indexedDB.open("toDoList", 4);
dBOpenRequest.onupgradeneeded = (event) => {
const db = event.target.result;
console.log(`Upgrading to version ${db.version}`);
// Create an objectStore for this database
const objectStore = db.createObjectStore("toDoList", {
keyPath: "taskTitle",
});
// define what data items the objectStore will contain
objectStore.createIndex("hours", "hours", { unique: false });
objectStore.createIndex("minutes", "minutes", { unique: false });
objectStore.createIndex("day", "day", { unique: false });
objectStore.createIndex("month", "month", { unique: false });
objectStore.createIndex("year", "year", { unique: false });
};?
Overall, this code example demonstrates how to open an IndexedDB database, handle the upgrade event, create an object store, and define indexes on the object store.
NOTE : It's important to handle versioning properly to ensure smooth database upgrades and migrations in real-world scenarios.
