AWS, JavaScript, React - Deploy Web Apps on the Cloud - External JavaScript

The video tutorial explains how to use external JavaScript files, similar to external CSS files. It guides through creating a new JavaScript file, saving it, and linking it in an HTML document using the script tag with a source attribute. The tutorial highlights the advantages of external JavaScript files, such as easier maintenance and improved webpage loading speed due to caching.

What is the purpose of creating an external JavaScript file?

• To slow down the webpage loading speed

• To separate JavaScript code from HTML for better organization

• To make the HTML file larger

• To make JavaScript code harder to read

How do you link an external JavaScript file to an HTML document?

• By using a meta tag

• By using a link tag

• By using a style tag

• By using a script tag with a source attribute

What should you do after linking the JavaScript file to ensure it works?

• Check the file size

• Preview it in a browser

• Rename the file

• Delete the HTML file

What is one advantage of using external JavaScript files?

• They increase the complexity of the code

• They decrease the speed of the webpage

• They make the code easier to maintain

• They make the code harder to maintain

How do cached JavaScript files affect webpage performance?

• They make the webpage less secure

• They increase the speed at which the webpage loads

• They have no effect on performance

• They slow down the webpage