Q
How can you ensure that a global variable defined in an external JavaScript file is accessible within an HTML document?

Answer & Solution

Answer: Option D
Solution:
To ensure that a global variable defined in an external JavaScript file is accessible within an HTML document, you should use the <script> tag to link the external JavaScript file in the HTML document.
Related Questions on Average

How can you declare a global variable in HTML using the data-* attribute within an HTML element?

A). <div data-global-var='value'> </div>

B). <div global-var='value'> </div>

C). <div data='global-var: value'> </div>

D). <div global data-var='value'> </div>

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

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

A). <div>

B). <variable>

C). <script>

D). <global>

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

A). data-global

B). global

C). globalvar

D). name

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>

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 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

How can you access a global variable defined in one <script> element from another <script> element in HTML?

A). By using the global attribute on both elements

B). By using the var keyword to declare the variable as global

C). By using the window object to access the global variable declared in the first script element

D). By using the <global> element to link the variables

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

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