JQuery Technical Questions – codewindow.in

JQuery - Questions

Introduction

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1. What is jQuery and why is it used in web development?

2. How does jQuery simplify the process of working with JavaScript?

3. Give an example of how to select an element in the DOM using jQuery?

4. How to use the “ready” function in jQuery to ensure the DOM is loaded before executing code?

5. Explain the difference between $(document).ready and $.ready in jQuery?

6. How to add and remove elements from the DOM using jQuery?

7. Example of how to modify the CSS of an element using jQuery?

8. How to handle events in jQuery, such as clicks and hover actions?

9. Explain the difference between “window.onload” and “$(document).ready” in jQuery?

10. How does jQuery handle cross-browser compatibility issues?

selectors and traversal

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11. What is a selector in jQuery and how do you use it?

12. How does jQuery’s selectors differ from CSS selectors?

13. Give an example of using an ID selector in jQuery?

14. Explain the difference between the “find” and “children” methods in jQuery?

15. How to select all elements with a specific class name in jQuery?

16. Explain the difference between the “siblings” and “next” methods in jQuery?

17. How to select the parent element of a selected element in jQuery?

18. Give an example of using an attribute selector in jQuery?

19. How to traverse elements in a DOM hierarchy using jQuery?

20. Give an example of using the “each” method in jQuery?

DOM Manipulation

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21. What is DOM manipulation in jQuery and how does it work?

22. Example of how to add content to an element in the DOM using jQuery?

23. How to remove elements from the DOM using jQuery?

24. Explain the difference between the “append” and “prepend” methods in jQuery?

25. How to replace an element in the DOM using jQuery?

26. Example of how to modify an element’s attributes using jQuery?

27. How to add and remove classes from elements in the DOM using jQuery?

28. Explain the difference between the “empty” and “remove” methods in jQuery?

29. How to wrap elements in the DOM using jQuery?

30. Example of how to clone elements in the DOM using jQuery?

Event handling

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31. What is event handling in jQuery and how does it work?

32. Give an Example of how to bind an event to an element in jQuery?

33. How to trigger an event in jQuery?

34. Explain the difference between the “click” and “on” methods in jQuery?

35. How to handle multiple events in jQuery?

36. Example of how to prevent a default action from occurring in an event handler in jQuery?

37. How to pass data to an event handler in jQuery?

38. Explain the difference between “event.preventDefault()” and “event.stopPropagation()”?

39. How to use event delegation in jQuery?

40. Give an Example of how to handle touch events in jQuery?

Animations and Effects

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41. What are animations and effects in jQuery and how do they work?

42. Give an example of how to animate an element’s properties using jQuery?

43. How to control the speed, easing, and duration of animations in jQuery?

44. Explain the difference between the “animate” and “fadeIn” methods in jQuery?

45. How to create custom animations in jQuery?

46. Give an example of how to stop an animation in progress using jQuery?

47. How to use callbacks with animations in jQuery?

48. Explain the difference between the “fadeOut” and “slideUp” methods in jQuery?

49. How to create a toggle effect with animations in jQuery?

50. Give an example of how to chain animations in jQuery?

AJAX

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51. What is AJAX and how does it work with jQuery?

52. Give an example of how to make a simple AJAX request using jQuery?

53. How to handle the success and error responses of an AJAX request in jQuery?

54. Explain the difference between the “get” and “post” methods in jQuery’s AJAX implementation?

55. How to send data with an AJAX request in jQuery?

56. Give an example of how to set custom headers for an AJAX request in jQuery?

57. How to handle JSON data in an AJAX response in jQuery?

58. Explain the difference between “load” and “ajax” methods in jQuery?

59. How to cache an AJAX request in jQuery?

60. Give an example of how to abort an AJAX request in jQuery?

Utilities and Plugins

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61. What are utilities and plugins in jQuery and how do they work?

62. Give an example of how to use the each method in jQuery to iterate over elements in a collection?

63. How to extend the capabilities of jQuery using plugins?

64. Explain the difference between the “extend” and “fn.extend” methods in jQuery?

65. How to check if a value is a function in jQuery?

66. Give an example of how to create a custom plugin in jQuery?

67. How to use the “noConflict” method to avoid naming conflicts with other libraries in jQuery?

68. Explain the difference between “deferred” and “promise” objects in jQuery?

69. How to use the “when” method in jQuery to handle multiple deferred objects?

70. Give an example of how to use the “trim” method in jQuery to remove whitespaces from strings?

Related Topics

JQuery - Questions

1. What is jQuery and why is it used in web development?

2. How does jQuery simplify the process of working with JavaScript?

3. Give an example of how to select an element in the DOM using jQuery?

4. How to use the “ready” function in jQuery to ensure the DOM is loaded before executing code?

5. Explain the difference between $(document).ready and $.ready in jQuery?

6. How to add and remove elements from the DOM using jQuery?

7. Example of how to modify the CSS of an element using jQuery?

8. How to handle events in jQuery, such as clicks and hover actions?

9. Explain the difference between “window.onload” and “$(document).ready” in jQuery?

10. How does jQuery handle cross-browser compatibility issues?

11. What is a selector in jQuery and how do you use it?

12. How does jQuery’s selectors differ from CSS selectors?

13. Give an example of using an ID selector in jQuery?

14. Explain the difference between the “find” and “children” methods in jQuery?

15. How to select all elements with a specific class name in jQuery?

16. Explain the difference between the “siblings” and “next” methods in jQuery?

17. How to select the parent element of a selected element in jQuery?

18. Give an example of using an attribute selector in jQuery?

19. How to traverse elements in a DOM hierarchy using jQuery?

20. Give an example of using the “each” method in jQuery?

21. What is DOM manipulation in jQuery and how does it work?

22. Example of how to add content to an element in the DOM using jQuery?

23. How to remove elements from the DOM using jQuery?

24. Explain the difference between the “append” and “prepend” methods in jQuery?

25. How to replace an element in the DOM using jQuery?

26. Example of how to modify an element’s attributes using jQuery?

27. How to add and remove classes from elements in the DOM using jQuery?

28. Explain the difference between the “empty” and “remove” methods in jQuery?

29. How to wrap elements in the DOM using jQuery?

30. Example of how to clone elements in the DOM using jQuery?

31. What is event handling in jQuery and how does it work?

32. Give an Example of how to bind an event to an element in jQuery?

33. How to trigger an event in jQuery?

34. Explain the difference between the “click” and “on” methods in jQuery?

35. How to handle multiple events in jQuery?

36. Example of how to prevent a default action from occurring in an event handler in jQuery?

37. How to pass data to an event handler in jQuery?

38. Explain the difference between “event.preventDefault()” and “event.stopPropagation()”?

39. How to use event delegation in jQuery?

40. Give an Example of how to handle touch events in jQuery?

41. What are animations and effects in jQuery and how do they work?

42. Give an example of how to animate an element’s properties using jQuery?

43. How to control the speed, easing, and duration of animations in jQuery?

44. Explain the difference between the “animate” and “fadeIn” methods in jQuery?

45. How to create custom animations in jQuery?

46. Give an example of how to stop an animation in progress using jQuery?

47. How to use callbacks with animations in jQuery?

48. Explain the difference between the “fadeOut” and “slideUp” methods in jQuery?

49. How to create a toggle effect with animations in jQuery?

50. Give an example of how to chain animations in jQuery?

51. What is AJAX and how does it work with jQuery?

52. Give an example of how to make a simple AJAX request using jQuery?

53. How to handle the success and error responses of an AJAX request in jQuery?

54. Explain the difference between the “get” and “post” methods in jQuery’s AJAX implementation?

55. How to send data with an AJAX request in jQuery?

56. Give an example of how to set custom headers for an AJAX request in jQuery?

57. How to handle JSON data in an AJAX response in jQuery?

58. Explain the difference between “load” and “ajax” methods in jQuery?

59. How to cache an AJAX request in jQuery?

60. Give an example of how to abort an AJAX request in jQuery?

61. What are utilities and plugins in jQuery and how do they work?

62. Give an example of how to use the each method in jQuery to iterate over elements in a collection?

63. How to extend the capabilities of jQuery using plugins?

64. Explain the difference between the “extend” and “fn.extend” methods in jQuery?

65. How to check if a value is a function in jQuery?

66. Give an example of how to create a custom plugin in jQuery?

67. How to use the “noConflict” method to avoid naming conflicts with other libraries in jQuery?

68. Explain the difference between “deferred” and “promise” objects in jQuery?

69. How to use the “when” method in jQuery to handle multiple deferred objects?

70. Give an example of how to use the “trim” method in jQuery to remove whitespaces from strings?

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