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

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.

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

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

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

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

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

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

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