Final answer:
In JavaScript, to remove a specific item from local storage use 'localStorage.removeItem('key')', and to clear all data use 'localStorage.clear()'. These methods should be used carefully as they delete data permanently.
Step-by-step explanation:
To remove local storage data in JavaScript, you can use one of the following methods:
- To remove a specific item, use the localStorage.removeItem('key') method, where 'key' is the name of the data you want to remove.
- To clear all local storage, use the localStorage.clear() method. This will remove all data stored in local storage for that domain.
For example, if you stored data with the key 'user_settings', you would remove it using:
localStorage.removeItem('user_settings');
If you want to remove all local storage data for the domain, use:
localStorage.clear();
Remember to use these methods responsibly as they will permanently delete data that may be critical for your web application.