Optimizing jQuery code for performance and efficiency Mockest | JQuery

11.

How can you cache AJAX responses in jQuery?

A). By setting cache: false B). By setting cache: true C). By using the .promise() method D). By using the .then() method

Answer & Solution Discuss in Board

12.

What is the advantage of using native JavaScript methods over jQuery methods?

A). Better readability B). Better browser compatibility C). Improved performance D). Easier to use

Answer & Solution Discuss in Board

13.

How can you optimize the performance of event handlers?

A). By using the .bind() method B). By using the .live() method C). By using event delegation D). By using inline event handlers

Answer & Solution Discuss in Board

14.

What is the best practice for handling frequent events like scroll or resize?

A). Use .off() to remove handlers B). Use inline event handlers C). Use debounce or throttle D). Use .bind() method

Answer & Solution Discuss in Board

15.

How can you delay the loading of images to improve performance?

A). Use the .load() method B). Use a lazy load plugin C). Use the .ready() method D). Use inline styles

Answer & Solution Discuss in Board

16.

Which of the following methods improves performance by reducing the number of reflows?

A). .html() B). .text() C). .css() D). .detach()

Answer & Solution Discuss in Board

17.

How can you optimize AJAX requests for better performance?

A). Use synchronous requests B). Use POST method for all requests C). Minimize data transferred D). Avoid using AJAX

Answer & Solution Discuss in Board

18.

Why should you use the latest version of jQuery?

A). To improve compatibility with older browsers B). To access new features C). To improve performance and fix bugs D). To reduce file size

Answer & Solution Discuss in Board

19.

What is the effect of using the .append() method inside a loop without caching?

A). Improved readability B). Improved performance C). Increased DOM manipulations D). Reduced memory usage

Answer & Solution Discuss in Board

20.

How can you batch DOM changes to improve performance?

A). Use .addClass() and .removeClass() B). Use document fragments C). Use inline styles D). Use .hide() and .show()

Answer & Solution Discuss in Board

Optimizing jQuery code for performance and efficiency Mocktest

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