IDBRequest: success event
The success
event is fired when an IDBRequest
succeeds.
This event is not cancelable and does not bubble.
Syntax
Use the event name in methods like addEventListener()
, or set an event handler property.
js
addEventListener("success", (event) => {});
onsuccess = (event) => {};
Event type
A generic Event
.
Examples
This example tries to open a database and listens for the success
event using addEventListener()
:
js
// Open the database
const openRequest = window.indexedDB.open("toDoList", 4);
openRequest.onupgradeneeded = (event) => {
const db = event.target.result;
db.onerror = () => {
console.log("Error creating database");
};
// 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 });
};
openRequest.addEventListener("success", (event) => {
console.log("Database opened successfully!");
});
The same example, but using the onsuccess
event handler property:
js
// Open the database
const openRequest = window.indexedDB.open("toDoList", 4);
openRequest.onupgradeneeded = (event) => {
const db = event.target.result;
db.onerror = () => {
console.log("Error creating database");
};
// 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 });
};
openRequest.onsuccess = (event) => {
console.log("Database opened successfully!");
};
Browser compatibility
BCD tables only load in the browser