Answer & Solution
<script>
element in HTML is used to delay the loading and execution of the script until after the HTML content is parsed, ensuring that global variables are defined before the script runs.
<script>
element in HTML?
<script>
element in HTML is used to delay the loading and execution of the script until after the HTML content is parsed, ensuring that global variables are defined before the script runs.
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');
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 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
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>
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 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
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 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
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