IndexedDB – Cursors In retrieving data we used the get() function when we knew what key we wanted to retrieve but if we want to step through all the values of the object store we can use cursors. Firstly we use the open cursor function and then we can add our arguments to it. The […]
Category Archives: indexeddb
IndexedDB – Error Handling Not all requests we write will return an output. This may happen due to − possible errors while writing the code. If the storage limit has been exceeded. If transactions have failed etc. In a failed request the transaction is canceled, and all the changes are reverted. But sometimes we want […]
IndexedDB – Promise Wrapper Promises, like callbacks, are a technique of telling what you want your code to perform once an asynchronous operation completes without stopping the runtime’s thread of javascript. Instead of supplying a callback to an asynchronous function to run after it completes, promises can be used instead. Promise library was created by […]