Which jQuery method is commonly used for event delegation?
A). .on()
B). .click()
C). .delegate()
D). .trigger()
Which jQuery method provides better performance for event delegation: .on() or .click()?
A). .on()
B). .click()
C). Both methods provide similar performance.
D). It depends on the browser being used.
How does event delegation help in handling events on dynamically added table rows?
A). By attaching event handlers to the parent table element.
B). By attaching event handlers directly to the dynamically added table rows.
C). By manually refreshing the page whenever new rows are added.
D). By using regular expressions to match table rows.
Which scenario is suitable for using event delegation?
A). When dealing with dynamically added elements or a large number of elements.
B). When events need to be triggered manually.
C). When events should be prevented from bubbling up the DOM tree.
D). When there is a need to remove events from the DOM altogether.
What is event delegation in JavaScript/jQuery?
A). A technique for handling events on dynamically added DOM elements.
B). A method to delegate event handling to parent elements.
C). A way to trigger events manually in jQuery.
D). A mechanism to prevent event propagation in JavaScript.
How does event delegation contribute to better performance in web applications?
A). By reducing the number of event handlers attached to individual elements.
B). By increasing the number of event handlers attached to individual elements.
C). By requiring manual refreshing of the page whenever new elements are added.
D). By preventing events from bubbling up the DOM tree.
When is event delegation particularly useful in web development?
A). When events need to be triggered programmatically.
B). When dealing with a static DOM structure.
C). When handling events on elements that are dynamically added or removed.
D). When preventing events from bubbling up the DOM tree.
Which jQuery method is deprecated in favor of .on() for event delegation?
A). .bind()
B). .live()
C). .delegate()
D). .trigger()
What is the syntax for using event delegation with jQuery's .on() method?
A). $(parentElement).on(eventType, childSelector, eventHandler);
B). $(childElement).on(eventType, parentSelector, eventHandler);
C). $(parentElement).delegate(eventType, childSelector, eventHandler);
D). $(childElement).delegate(eventType, parentSelector, eventHandler);
How does event delegation simplify event handling in web development?
A). By attaching event handlers to parent elements instead of individual elements.
B). By requiring manual refreshing of the page whenever new elements are added.
C). By removing events from the DOM altogether.
D). By triggering events programmatically.