1. What is jQuery?
a) A programming language
b) A library of JavaScript code
c) A web browser
d) A computer operating system
Answer: b
2. What is the latest version of jQuery?
a) 2.x.x
b) 3.x.x
c) 4.x.x
d) 5.x.x
Answer: b
3. What is the purpose of the jQuery library?
a) To provide an easy way to write JavaScript code
b) To help developers create secure websites
c) To improve website performance
d) To simplify website design
Answer: a
4. How can you include jQuery in your webpage?
a) By downloading it from the jQuery website
b) By linking to it from a CDN
c) By copying and pasting the code from the jQuery website
d) All of the above
Answer: b
5. Which symbol is used to select classes in jQuery?
a) #
b) .
c) :
d) *
Answer: b
6. Which symbol is used to select IDs in jQuery?
a) #
b) .
c) :
d) *
Answer: a
7. Which method is used to hide an element in jQuery?
a) show()
b) hide()
c) remove()
d) clear()
Answer: b
8. Which method is used to animate an element in jQuery?
a) animate()
b) create()
c) transform()
d) modify()
Answer: a
9. Which method is used to add a class to an element in jQuery?
a) addClass()
b) removeClass()
c) toggleClass()
d) All of the above
Answer: a
10. Which method is used to remove a class from an element in jQuery?
a) addClass()
b) removeClass()
c) toggleClass()
d) All of the above
Answer: b
11. What is the purpose of the jQuery .each() method?
a) To loop through an array or object
b) To add elements to a webpage
c) To remove elements from a webpage
d) To animate elements on a webpage
Answer: a
12. Which method is used to get the text content of an element in jQuery?
a) text()
b) html()
c) val()
d) attr()
Answer: a
13. Which method is used to set the text content of an element in jQuery?
a) text()
b) html()
c) val()
d) attr()
Answer: a
14. Which method is used to get the HTML content of an element in jQuery?
a) text()
b) html()
c) val()
d) attr()
Answer: b
15. Which method is used to set the HTML content of an element in jQuery?
a) text()
b) html()
c) val()
d) attr()
Answer: b
16. Which method is used to get the value of a form element in jQuery?
a) text()
b) html()
c) val()
d) attr()
Answer: c
17. Which method is used to set the value of a form element in jQuery?
a) text()
b) html()
c) val()
d) attr()
Answer: c
18. Which method is used to get the attribute of an element in jQuery?
a) text()
b) html()
c) val()
d) attr()
Answer: d
19. Which method is used to set the attribute of an element in jQuery?
a) text()
b) html()
c) val()
d) attr()
Answer: d
20. Which method is used to get the parent element of an element in jQuery?
a) parent()
b) child()
c) sibling()
d) ancestor()
Answer: a
21. Which method is used to get the children elements of an element in jQuery?
a) parent()
b) child()
c) sibling()
d) ancestor()
Answer: b
22. Which method is used to get the sibling elements of an element in jQuery?
a) parent()
b) child()
c) sibling()
d) ancestor()
Answer: c
23. What is the difference between the .parent() method and the .parents() method in jQuery?
a) The .parent() method only returns the immediate parent element, while the .parents() method returns all ancestor elements.
b) The .parent() method only returns the first parent element, while the .parents() method returns all parent elements.
c) The .parent() method only returns elements with a specific class, while the .parents() method returns all elements.
d) The .parent() method only returns elements with a specific ID, while the .parents() method returns all elements.
Answer: a
24. Which method is used to filter elements in a selection in jQuery?
a) filter()
b) map()
c) reduce()
d) sort()
Answer: a
25. Which method is used to find elements in a selection in jQuery?
a) filter()
b) map()
c) reduce()
d) find()
Answer: d
26. Which method is used to add elements to a selection in jQuery?
a) add()
b) append()
c) prepend()
d) replace()
Answer: a
27. Which method is used to remove elements from a selection in jQuery?
a) remove()
b) detach()
c) clear()
d) erase()
Answer: a
28. Which method is used to bind an event handler to an element in jQuery?
a) on()
b) click()
c) bind()
d) attach()
Answer: a
29. Which method is used to trigger an event handler in jQuery?
a) trigger()
b) fire()
c) activate()
d) start()
Answer: a
30. What is the difference between the .click() method and the .on(‘click’) method in jQuery?
a) The .click() method can only be used on anchor elements, while the .on() method can be used on any element.
b) The .click() method can only be used once on an element, while the .on() method can be used multiple times.
c) The .click() method is shorthand for the .on(‘click’) method.
d) The .click() method cannot be used on form elements, while the .on() method can.
Answer: c
31. Which method is used to stop the default behavior of an event in jQuery?
a) stop()
b) preventDefault()
c) cancel()
d) halt()
Answer: b
32. Which method is used to stop an event from bubbling up the event chain in jQuery?
a) stopPropagation()
b) cancelBubble()
c) endPropagation()
d) terminateBubble()
Answer: a
33. Which method is used to delay the execution of code in jQuery?
a) delay()
b) pause()
c) hold()
d) wait()
Answer: a
34. Which method is used to animate the opacity of an element in jQuery?
a) fadeIn()/fadeOut()
b) show()/hide()
c) animate()
d) slideDown()/slideUp()
Answer: a
35. Which method is used to animate the height of an element in jQuery?
a) fadeIn()/fadeOut()
b) show()/hide()
c) animate()
d) slideDown()/slideUp()
Answer: d
36. Which method is used to animate the width of an element in jQuery?
a) fadeIn()/fadeOut()
b) show()/hide()
c) animate()
d) slideDown()/slideUp()
Answer: c
37. Which method is used to create a new element in jQuery?
a) create()
b) append()
c) prepend()
d) html()
Answer: a
38. Which method is used to add content to an element in jQuery?
a) create()
b) append()
c) prepend()
d) html()
Answer: d
39. Which method is used to remove all child elements from an element in jQuery?
a) empty()
b) remove()
c) detach()
d) erase()
Answer: a
40. Which method is used to replace an element with new content in jQuery?
a) replace()
b) replaceWith()
c) swap()
d) exchange()
Answer: b
41. Which method is used to serialize a form in jQuery?
a) form()
b) serialize()
c) submit()
d) serializeForm()
Answer: b
42. Which method is used to load data from a server and place it into an element in jQuery?
a) ajax()
b) load()
c) get()
d) fetch()
Answer: b
43. Which method is used to send data to a server in jQuery?
a) ajax()
b) load()
c) get()
d) post()
Answer: d
44. Which method is used to set a timer in jQuery?
a) setTimeout()
b) setInterval()
c) delay()
d) pause()
Answer: b
45. Which method is used to stop a timer in jQuery?
a) clearTimeout()
b) clearInterval()
c) stopInterval()
d) pauseInterval()
Answer: b
46. Which method is used to set the content of an input element in jQuery?
a) text()
b) html()
c) val()
d) attr()
Answer: c
47. Which method is used to disable an input element in jQuery?
a) enable()
b) disable()
c) readonly()
d) writable()
Answer: b
48. Which method is used to select elements based on their position in a selection in jQuery?
a) eq()
b) nth()
c) position()
d) order()
Answer: a
49. Which method is used to get the height of an element in jQuery?
a) height()
b) width()
c) length()
d) size()
Answer: a
50. Which method is used to get the width of an element in jQuery?
a) height()
b) width()
c) length()
d) size()
Answer: b
- Top 10 DevOps Trainers in the world - October 7, 2023
- What is Cookies and Why it is Used? - May 24, 2023
- TOP trends of transitions in TikTok - May 10, 2023