Modern JavaScript from the Beginning - Second Edition - Save Meals to Local Storage

Modern JavaScript from the Beginning - Second Edition - Save Meals to Local Storage

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Hard

Created by

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The video tutorial addresses issues with data persistence in a calorie tracker app. It explains how to implement methods for retrieving and saving meals to local storage using JavaScript. The tutorial also covers updating the tracker class to integrate these methods and ensure meals are displayed correctly. Finally, it sets the stage for implementing similar functionality for workouts in a future video.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the initial problem identified with the calories and meals data?

They were not being stored in local storage.

They were not being displayed correctly.

They were not being calculated correctly.

They were not being updated in real-time.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the static method to retrieve meals from local storage do if meals are not found?

It returns a default meal.

It logs a warning message.

It throws an error.

It initializes an empty array.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it necessary to stringify the meals array before saving it to local storage?

It encrypts the data for security.

It compresses the data for storage.

Stringifying makes it easier to read.

Local storage only accepts string data.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the 'load items' method introduced in the video?

To calculate total calories.

To display meals and workouts from local storage.

To delete old meal entries.

To update the UI with new workouts.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the instructor suggest viewers try implementing on their own?

Creating a new UI design.

Calculating total workout time.

Implementing a save workouts method.

Adding a new meal type.