Which technique is commonly used in JavaScript to dynamically create and add elements to the DOM?

What is the primary purpose of DOM manipulation in JavaScript?

A). Modifying the structure and content of HTML elements dynamically

B). Validating user input

C). Handling server-side operations

D). Creating external references

Which JavaScript feature allows for the creation of dynamic content on web pages?

A). Conditional rendering

B). Asynchronous functions

C). Callback functions

D). Dynamic content creation

How can JavaScript be utilized to format data such as dates and numbers?

A). By using external references

B). By manipulating the DOM

C). By defining regular expressions

D). By using built-in methods and functions

What is the purpose of using JavaScript for conditional rendering on web pages?

A). To enhance website security

B). To improve code performance

C). To display content based on specific conditions or user input

D). To compress and minify code

What is the primary purpose of animation and effects in JavaScript?

A). To enhance user experience

B). To improve code performance

C). To handle database queries

D). To compress and minify code

Which JavaScript feature is commonly used to optimize code performance and reduce load times on web pages?

A). Event handling

B). Asynchronous functions

C). External references

D). Code optimization techniques

How does JavaScript contribute to creating visually appealing web interfaces?

A). By handling server-side operations

B). By utilizing CSS for styling

C). By compressing and minifying code

D). By optimizing database queries

What is the purpose of conditional rendering in JavaScript?

A). To handle errors in code

B). To render content based on conditions

C). To manage external dependencies

D). To optimize database queries

How can event handling be utilized in JavaScript?

A). To modify CSS styles

B). To validate form data

C). To respond to user interactions

D). To connect to a database

How can JavaScript be utilized to create responsive web applications?

A). By handling external references

B). By defining CSS stylesheets

C). By implementing error handling

D). By utilizing event-driven programming