JavaScript Masterclass - Zero to Job-Ready with Hands-On Projects - Local Storage / 207

The video tutorial introduces local storage, a browser feature that allows data persistence beyond session life. It covers methods to set, get, remove, and clear data, emphasizing the key-value pair format. Practical examples demonstrate storing and retrieving data, highlighting the limitation of storing only strings. The tutorial concludes with an introduction to JSON, which will be explored further in the next lecture.

What is a key advantage of using local storage over arrays?

• Data is stored temporarily.

• Data can be accessed only when the file is running.

• Data persists even after closing the browser.

• Data is stored in binary format.

Which method is used to store data in local storage?

• getItem

• setItem

• removeItem

• clear

In what format is data stored in local storage?

• String

• Binary

• XML

• JSON

How can you retrieve a stored item from local storage?

• Using clear method

• Using getItem method

• Using removeItem method

• Using setItem method

What happens to local storage data when the browser is closed and reopened?

• Data is lost

• Data is reset

• Data is encrypted

• Data persists

Which method is used to remove a specific item from local storage?

• clear

• removeItem

• getItem

• setItem

How can you update an existing value in local storage?

• Use setItem with the same key

• Use modifyItem method

• Use changeItem method

• Use updateItem method

What is a limitation of local storage regarding data types?

• It can only store numbers

• It can only store strings

• It can only store objects

• It can only store arrays

Why is JSON parsing important when using local storage?

• To store data in binary format

• To convert strings to JavaScript objects

• To encrypt data

• To compress data

What will be discussed in the next lecture following this one?

• Browser compatibility issues

• Data encryption techniques

• JSON stringify and parse

• Advanced JavaScript functions