What is the correct syntax for defining a global variable in HTML using the <script> element?
A). <script globalVar='value'>
B). <script var='globalVar' value='value'>
C). <script global var='globalVar' value='value'> </script>
D). <script global='globalVar' value='value'> </script>
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
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 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
What is the purpose of using global variables within HTML elements using custom data attributes?
A). To store and retrieve data specific to each HTML element
B). To restrict access to data within specific HTML elements
C). To create variables with limited scope within HTML elements
D). To avoid using JavaScript for data manipulation
What is the purpose of using global variables in CSS?
A). To store values that can be reused throughout a CSS stylesheet
B). To restrict the scope of variables within specific CSS rules
C). To override default browser styles
D). To prevent conflicts between CSS selectors
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'
Which CSS function is used to access the value of a global variable defined in HTML?
A). var()
B). global()
C). getGlobalVar()
D). accessGlobal()
Which HTML element is commonly used to store and access global data attributes in HTML?
A). <form>
B). <body>
C). <head>
D). <html>
Which statement accurately describes the scope of global variables declared in HTML?
A). Global variables are accessible only within the <script> element where they are declared
B). Global variables are accessible only within the <body> element where they are declared
C). Global variables are accessible throughout the entire HTML document
D). Global variables are accessible only within the <head> element where they are declared