IndexedDB – Transactions A transaction is a group of operations, that should either all succeed, or all fail. For example, if we pay from UPI to a merchant and the transaction declines then the money must fall back to the senders” account. A transaction maintains this integrity. Following is the syntax for opening a transaction […]
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IndexedDB – Using getAll() Function In the previous sections, we only retrieved objects from the store one at a time. Now we can retrieve all the data or subsets of the object stores. The get all method returns all the objects in the object store using the getAll() function Syntax ObjectStore.getAll(optionalConstraint); We can directly call […]
IndexedDB – Updating Data After we created the data, the next step is to perform various operations on it; so we need to update the data regularly. We also need to update the data in the case where we entered data incorrectly into the database. Here, we have to specify a read−write transaction because we […]