Q
What is the purpose of caching jQuery selectors?

Answer & Solution

Answer: Option C
Solution:
Caching selectors avoids repeated DOM queries, improving performance.
Related Questions on Average

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

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()

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

How does event delegation improve performance?

A). By using fewer event handlers

B). By using more event handlers

C). By attaching handlers directly to elements

D). By avoiding event handling

What jQuery method is used for event delegation?

A). .on()

B). .off()

C). .click()

D). .bind()

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

How can you minimize DOM manipulation reflows?

A). Use inline styles

B). Use CSS classes

C). Batch DOM changes

D). Avoid using jQuery

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

A). .html()

B). .text()

C). .css()

D). .detach()

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

What is the purpose of the debounce function?

A). To improve animation performance

B). To limit the rate at which a function is executed

C). To improve event handling

D). To batch DOM changes