Which HTML element is commonly used to define global variables in HTML?

Which attribute is used to declare a global variable inside a <script> element in HTML?

A). data-global

B). global

C). globalvar

D). name

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'

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 correct syntax for accessing a global data attribute named 'global-var' from an HTML element with the ID 'myElement' using JavaScript?

A). document.querySelector('#myElement').getAttribute('data-global-var');

B). document.getElementById('myElement').getAttribute('global-var');

C). document.getElementById('myElement').getAttribute('data-global-var');

D). document.querySelector('#myElement').getAttribute('global-var');

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

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

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

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

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>