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

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

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

A). .html()

B). .text()

C). .css()

D). .detach()

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

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

What is event delegation?

A). Binding events to each child element

B). Binding events to a parent element

C). Using inline event handlers

D). Using anonymous functions

What is the benefit of using the .when() method in jQuery?

A). To handle a single AJAX request

B). To handle multiple AJAX requests concurrently

C). To handle DOM manipulations

D). To handle event delegation

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 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 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

What jQuery method is used for event delegation?

A). .on()

B). .off()

C). .click()

D). .bind()