<head> section?
<head>.
Which attribute can be used to make external JavaScript files load asynchronously in the <head> or <body> sections?
A). async
B). defer
C). sync
D). load
Variables declared in the <body> section of an HTML document have what scope by default?
A). Local to the script or function.
B). Global throughout the document.
C). Limited to the <body> section.
D). Not accessible in JavaScript.
What is the purpose of using the async attribute with an external JavaScript file in the <head> section?
A). To load and execute the script after HTML parsing.
B). To defer script execution.
C). To block rendering until script loads.
D). To ensure script execution order.
Placing JavaScript in the <head> section can impact page load times because:
A). It blocks rendering until executed.
B). It loads scripts asynchronously.
C). It reduces HTTP requests.
D). It has no impact on loading.
When using an external JavaScript file in the <head> section with the defer attribute, when does it get executed?
A). After the HTML content is fully parsed.
B). Before the HTML content is parsed.
C). As soon as it starts loading.
D). After all other scripts in the <head>.
Using the defer attribute with an external JavaScript file in the <body> section means that the script:
A). Loads and executes after HTML parsing.
B). Loads synchronously with HTML parsing.
C). Loads and executes before HTML parsing.
D). Loads but doesn't execute.
What happens if JavaScript code in the <body> section of an HTML document is placed before critical content such as headings or main paragraphs?
A). It may cause FOUC (Flash of Unstyled Content).
B). It has no effect on page rendering.
C). It improves page load speed.
D). It slows down script execution.
Which attribute should be used for loading external JavaScript files without blocking rendering in the <head> or <body> sections?
A). async
B). defer
C). sync
D). load
Placing JavaScript at the end of the <body> section of an HTML document can result in:
A). Faster initial page rendering.
B). Slower overall page loading.
C). No impact on page performance.
D). Delayed execution of JavaScript.
Placing JavaScript at the end of the <body> section is beneficial for:
A). Improving page load speed.
B). Blocking page rendering.
C). Increasing script complexity.
D). Hiding script functionalities.