Answer & Solution
<container>
<script>
</container>
. It is used with the src attribute to specify the path of the external file.
<container>
<script>
</container>
. It is used with the src attribute to specify the path of the external file.
Which file extension is used for JavaScript files?
A). .java
B). .js
C). .javascript
D). .jsx
What is the difference between the defer and async attributes in the <container>
<script>
</container>
tag?
A). defer delays execution until after the HTML document is fully parsed, while async executes as soon as it is downloaded
B). defer executes the script immediately, while async delays execution until after HTML parsing is complete
C). defer and async both delay script execution until after HTML parsing is complete
D). There is no difference between defer and async attributes
How do you comment out code in JavaScript?
A). // This is a comment
B). /* This is a comment */
C). <!-- This is a comment --!>
D). ## This is a comment
What is the purpose of using external JavaScript files?
A). To keep HTML and JavaScript code separate
B). To reuse the JavaScript code on multiple pages
C). To improve the maintainability of the code
D). All of the above
What does the async attribute do when used in a <container>
<script>
</container>
tag?
A). Executes the script immediately
B). Delays script execution until HTML parsing is complete
C). Executes the script asynchronously
D). Executes the script before the HTML parsing begins
What is the advantage of using external JavaScript files?
A). Improves code readability
B). Allows reuse of code
C). Improves page load times due to caching
D). All of the above
How do you execute JavaScript code after the HTML document has loaded?
A). Use the defer attribute in the <container>
<script>
</container>
tag
B). Place the <container>
<script>
</container>
tag at the end of the <container>
<body>
</container>
section
C). Use the async attribute in the <container>
<script>
</container>
tag
D). All of the above
Can an external JavaScript file contain HTML?
A). Yes
B). No
C). Only if it is within a <container>
<script>
</container>
tag
D). Only if it is within a <container>
<body>
</container>
tag
Can an external JavaScript file be cached by the browser?
A). Yes
B). No
C). Only if specified in the HTML
D). Only if it is under a certain size
Where should the <container>
<script>
</container>
tag be placed in HTML?
A). In the <container>
<head>
</container>
section
B). In the <container>
<body>
</container>
section
C). At the end of the <container>
<body>
</container>
section
D). All of the above