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JavaScript Essentials Quiz

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Questions and Answers

What is the primary purpose of JavaScript in web development?

To enhance server security
To create server-side functionality
To optimize database performance
To make web pages interactive and dynamic (correct)

Where does JavaScript run in web development?

In the database
On the web server (server-side)
Inside the browser (client-side) (correct)
As a standalone application

What is an advantage of client-side scripting with JavaScript?

Offloading processing from the server to client machines (correct)
Enhancing server security
Improving database performance
Reducing client-side compatibility issues

What is a disadvantage of heavy use of JavaScript in web applications?

<p>Compatibility problems may occur (B)</p> Signup and view all the answers

How can data be displayed in JavaScript using a predefined function?

<p>document.getElementById('id') (C)</p> Signup and view all the answers

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Study Notes

JavaScript in Web Development

Primary purpose of JavaScript in web development is to add interactivity to websites.

Where JavaScript Runs

JavaScript runs on the client-side, meaning it runs on the user's web browser.

Advantage of Client-Side Scripting

Advantage of client-side scripting with JavaScript is that it reduces the load on the server, as the processing is done on the client-side.

Disadvantage of Heavy JavaScript Use

Disadvantage of heavy use of JavaScript in web applications is that it can lead to slower page loads and increased memory usage.

Displaying Data in JavaScript

Data can be displayed in JavaScript using a predefined function, such as document.write() or innerHTML property, which allows developers to display dynamic content on a web page.

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