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

Answer & Solution

Answer: Option Option D
Solution:
Code optimization techniques in JavaScript are commonly used to improve code performance and reduce load times on web pages, leading to better user experience and faster page rendering.
Related Questions on Average

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

A). Event handling

B). Conditional rendering

C). DOM manipulation

D). Data display and formatting

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

How can JavaScript be used to handle user input validation on web forms?

A). By utilizing external APIs

B). By defining regular expressions

C). By executing server-side code

D). By creating event listeners

What is the primary advantage of using JavaScript for dynamic content creation on web pages?

A). Improved website security

B). Reduced server load

C). Enhanced user interaction and engagement

D). Simplified code maintenance

What is the primary advantage of using event listeners in JavaScript?

A). Improved code readability

B). Reduced code complexity

C). Better performance

D). Responsive and interactive web applications

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

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

Which JavaScript feature enables the creation of dynamic and personalized user experiences on web pages?

A). Data display and formatting

B). Event handling

C). Conditional rendering

D). External references

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

How can JavaScript be used to handle user interactions on web pages?

A). By defining external references

B). By using event listeners

C). By including CSS stylesheets

D). By executing server-side code