Which of the following best describes the relationship between global variables in HTML and CSS?
A). Global variables in HTML can be accessed directly within CSS using custom CSS properties
B). Global variables in HTML must be converted to CSS variables before they can be used in CSS
C). Global variables in HTML and CSS are unrelated and cannot interact with each other
D). Global variables in HTML can only be accessed within the HTML document and cannot be used in CSS
How can you ensure that a global variable defined in an external JavaScript file is accessible within an HTML document?
A). By linking the external JavaScript file using the <link> element
B). By using the import statement to import the variable from the external file
C). By using the defer attribute in the <script> tag that links the external file
D). By using the <script> tag to link the external JavaScript file
Which of the following is a potential disadvantage of using global variables extensively within HTML documents?
A). Increased risk of naming conflicts and data pollution
B). Improved data organization and accessibility
C). Reduced dependency on JavaScript
D). Improved performance and efficiency
How can you mitigate the risk of naming conflicts when using global variables within HTML documents?
A). By using unique and descriptive names for global variables
B). By using shorter variable names
C). By using the global attribute to specify global variables
D). By using the namespace attribute to define variable namespaces
Which CSS function is used to access the value of a global variable defined in HTML?
A). var()
B). global()
C). getGlobalVar()
D). accessGlobal()
What is the output of the following HTML code snippet? <br> <br> <script> <br>var globalVar = 'Hello'; <br>console.log(globalVar); <br> </script>
A). Hello
B). Undefined
C). Error
D). 'Hello'
How can you access a global data attribute defined in an HTML element using JavaScript?
A). By using the getAttribute() method
B). By using the data() method
C). By using the setDataAttribute() method
D). By using the getGlobalAttribute() method
Which HTML element is commonly used to define global variables in HTML?
A). <div>
B). <variable>
C). <script>
D). <global>
What is the purpose of using global variables in HTML?
A). To store data temporarily within a specific HTML element
B). To store data that needs to be shared and accessed across different parts of an HTML document
C). To restrict access to variables within a specific HTML element
D). To prevent accidental modification of variables
What is the purpose of using the defer attribute in a <script> element in HTML?
A). To delay the loading of the script until after the HTML content is parsed
B). To prevent the script from executing unless triggered manually
C). To execute the script asynchronously
D). To specify the script's global variables