What is the purpose of using event delegation?
A). To handle events on elements that are dynamically added to the DOM.
B). To prevent events from bubbling up the DOM tree.
C). To trigger events programmatically.
D). To remove events from the DOM completely.
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.
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.
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.
What is the advantage of using event delegation in single-page applications (SPAs)?
A). It ensures that events are captured on dynamically generated content.
B). It allows events to be triggered programmatically.
C). It prevents events from bubbling up the DOM tree.
D). It requires fewer resources compared to traditional web applications.
What is the primary advantage of using event delegation in web development?
A). Simplifies event handling by attaching handlers directly to individual elements.
B). Ensures events are captured on dynamically added elements.
C). Increases the complexity of event handling logic.
D). Requires manual refreshing of the page whenever new elements are added.
How does event delegation help in handling dynamically added DOM elements?
A). By attaching event handlers to parent elements, ensuring consistent handling.
B). By removing event handlers from the DOM altogether.
C). By binding event handlers directly to dynamically added elements.
D). By refreshing the page whenever new elements are added.
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);
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.