AWS, JavaScript, React - Deploy Web Apps on the Cloud
 - Events in React

AWS, JavaScript, React - Deploy Web Apps on the Cloud - Events in React

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Hard

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This lesson covers how to handle onclick events in React. It explains the need to capitalize the second word in event names, such as 'onclick' to 'onClick', when using React. The lesson demonstrates how to implement callback functions to handle these events and how to apply them to calculator buttons. It concludes with a preview of passing parameters through onclick events.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary focus of this lesson regarding the calculator app?

Adding new features to the calculator

Styling the calculator buttons

Optimizing the calculator's performance

Handling button clicks using events

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In React, how are HTML events like onclick modified?

By adding a prefix

By appending 'React' to the event name

By capitalizing the first letter

By capitalizing the second word

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What must be done to handle an onclick event in React?

Use a third-party library

Directly modify the HTML

Use a global variable

Define a function and pass it as a prop

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the handleNumber function in the lesson?

To perform calculations

To log errors

To handle number button clicks

To style the calculator buttons

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does pressing button #8 not trigger an alert initially?

The button is disabled

The onclick event is not defined for it

The button is not visible

The button is not part of the DOM

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the next step after setting up onclick events for buttons?

Passing parameters to identify button clicks

Styling the buttons

Adding more buttons

Removing unused buttons

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main challenge addressed in the final section of the lesson?

Identifying which button was clicked

Improving button aesthetics

Reducing code complexity

Enhancing app performance