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
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 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 does JavaScript contribute to improving the user interface of web applications?
A). By reducing server load
B). By enhancing code organization
C). By optimizing database queries
D). By compressing and minifying 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
Which JavaScript feature is commonly used to create animations and visual effects on web pages?
A). DOM manipulation
B). CSS transitions
C). Asynchronous functions
D). Error handling
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 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
What is the primary purpose of using CSS transitions and animations in conjunction with JavaScript?
A). To improve server-side performance
B). To enhance user interface interactions
C). To handle database queries
D). To optimize code readability
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