Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.
Impara Removing Stored Data | Persisting Data with Web Storage
Working with JSON and Local Storage in JavaScript

bookRemoving Stored Data

index.js

index.js

copy

When you need to delete a certain value from localStorage, use the removeItem method and provide the key of the item you want to remove. This does not affect other stored data. It is important to always double-check the key you are deleting to avoid removing the wrong data. If the key does not exist, calling removeItem will not cause an error; nothing will happen and the storage remains unchanged. This approach helps you manage persistent storage in a safe and predictable way, especially when working with user data or application settings. Regularly review your storage keys and remove data that is no longer needed to keep your application efficient and secure.

1. Which method removes a single item from localStorage?

2. What happens if you call removeItem with a key that does not exist?

question mark

Which method removes a single item from localStorage?

Select the correct answer

question mark

What happens if you call removeItem with a key that does not exist?

Select the correct answer

Tutto è chiaro?

Come possiamo migliorarlo?

Grazie per i tuoi commenti!

Sezione 3. Capitolo 4

Chieda ad AI

expand

Chieda ad AI

ChatGPT

Chieda pure quello che desidera o provi una delle domande suggerite per iniziare la nostra conversazione

Suggested prompts:

Can you show me an example of how to use `removeItem` in JavaScript?

What happens if I try to remove a key that doesn't exist in `localStorage`?

Are there any best practices for managing keys in `localStorage`?

Awesome!

Completion rate improved to 7.69

bookRemoving Stored Data

Scorri per mostrare il menu

index.js

index.js

copy

When you need to delete a certain value from localStorage, use the removeItem method and provide the key of the item you want to remove. This does not affect other stored data. It is important to always double-check the key you are deleting to avoid removing the wrong data. If the key does not exist, calling removeItem will not cause an error; nothing will happen and the storage remains unchanged. This approach helps you manage persistent storage in a safe and predictable way, especially when working with user data or application settings. Regularly review your storage keys and remove data that is no longer needed to keep your application efficient and secure.

1. Which method removes a single item from localStorage?

2. What happens if you call removeItem with a key that does not exist?

question mark

Which method removes a single item from localStorage?

Select the correct answer

question mark

What happens if you call removeItem with a key that does not exist?

Select the correct answer

Tutto è chiaro?

Come possiamo migliorarlo?

Grazie per i tuoi commenti!

Sezione 3. Capitolo 4
some-alt