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๐ฐ JavaScript Tip ๐ก: Add properties to an object based on a condition.
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Here are the 50 JavaScript interview questions.
1. What is JavaScript?
2. What are the data types in JavaScript?
3. What is the difference between null and undefined?
4. Explain the concept of hoisting in JavaScript.
5. What is a closure in JavaScript?
6. What is the difference between โ==โ and โ===โ operators in JavaScript?
7. Explain the concept of prototypal inheritance in JavaScript.
8. What are the different ways to define a function in JavaScript?
9. How does event delegation work in JavaScript?
10. What is the purpose of the โthisโ keyword in JavaScript?
11. What are the different ways to create objects in JavaScript?
12. Explain the concept of callback functions in JavaScript.
13. What is event bubbling and event capturing in JavaScript?
14. What is the purpose of the โbindโ method in JavaScript?
15. Explain the concept of AJAX in JavaScript.
16. What is the โtypeofโ operator used for?
17. How does JavaScript handle errors and exceptions?
18. Explain the concept of event-driven programming in JavaScript.
19. What is the purpose of the โasyncโ and โawaitโ keywords in JavaScript?
20. What is the difference between a deep copy and a shallow copy in JavaScript?
21. *PH4N745M*
21. How does JavaScript handle memory management?
22. Explain the concept of event loop in JavaScript.
23. What is the purpose of the โmapโ method in JavaScript?
24. What is a promise in JavaScript?
25. How do you handle errors in promises?
26. Explain the concept of currying in JavaScript.
27. What is the purpose of the โreduceโ method in JavaScript?
28. What is the difference between โnullโ and โundefinedโ in JavaScript?
29. What are the different types of loops in JavaScript?
30. What is the difference between โlet,โ โconst,โ and โvarโ in JavaScript?
31. Explain the concept of event propagation in JavaScript.
32. What are the different ways to manipulate the DOM in JavaScript?
33. What is the purpose of the โlocalStorageโ and โsessionStorageโ objects?
34. How do you handle asynchronous operations in JavaScript?
35. What is the purpose of the โforEachโ method in JavaScript?
36. What are the differences between โletโ and โvarโ in JavaScript?
37. Explain the concept of memoization in JavaScript.
38. What is the purpose of the โspliceโ method in JavaScript arrays?
39. What is a generator function in JavaScript?
40. How does JavaScript handle variable scoping?
41. What is the purpose of the โsplitโ method in JavaScript?
42. What is the difference between a deep clone and a shallow clone of an object?
43. Explain the concept of the event delegation pattern.
44. What are the differences between JavaScriptโs โnullโ and โundefinedโ?
45. What is the purpose of the โargumentsโ object in JavaScript?
46. What are the different ways to define methods in JavaScript objects?
47. Explain the concept of memoization and its benefits.
48. What is the difference between โsliceโ and โspliceโ in JavaScript arrays?
49. What is the purpose of the โapplyโ and โcallโ methods in JavaScript?
50. Explain the concept of the event loop in JavaScript and how it handles asynchronous operations.
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ENJOY LEARNING ๐๐
1. What is JavaScript?
2. What are the data types in JavaScript?
3. What is the difference between null and undefined?
4. Explain the concept of hoisting in JavaScript.
5. What is a closure in JavaScript?
6. What is the difference between โ==โ and โ===โ operators in JavaScript?
7. Explain the concept of prototypal inheritance in JavaScript.
8. What are the different ways to define a function in JavaScript?
9. How does event delegation work in JavaScript?
10. What is the purpose of the โthisโ keyword in JavaScript?
11. What are the different ways to create objects in JavaScript?
12. Explain the concept of callback functions in JavaScript.
13. What is event bubbling and event capturing in JavaScript?
14. What is the purpose of the โbindโ method in JavaScript?
15. Explain the concept of AJAX in JavaScript.
16. What is the โtypeofโ operator used for?
17. How does JavaScript handle errors and exceptions?
18. Explain the concept of event-driven programming in JavaScript.
19. What is the purpose of the โasyncโ and โawaitโ keywords in JavaScript?
20. What is the difference between a deep copy and a shallow copy in JavaScript?
21. *PH4N745M*
21. How does JavaScript handle memory management?
22. Explain the concept of event loop in JavaScript.
23. What is the purpose of the โmapโ method in JavaScript?
24. What is a promise in JavaScript?
25. How do you handle errors in promises?
26. Explain the concept of currying in JavaScript.
27. What is the purpose of the โreduceโ method in JavaScript?
28. What is the difference between โnullโ and โundefinedโ in JavaScript?
29. What are the different types of loops in JavaScript?
30. What is the difference between โlet,โ โconst,โ and โvarโ in JavaScript?
31. Explain the concept of event propagation in JavaScript.
32. What are the different ways to manipulate the DOM in JavaScript?
33. What is the purpose of the โlocalStorageโ and โsessionStorageโ objects?
34. How do you handle asynchronous operations in JavaScript?
35. What is the purpose of the โforEachโ method in JavaScript?
36. What are the differences between โletโ and โvarโ in JavaScript?
37. Explain the concept of memoization in JavaScript.
38. What is the purpose of the โspliceโ method in JavaScript arrays?
39. What is a generator function in JavaScript?
40. How does JavaScript handle variable scoping?
41. What is the purpose of the โsplitโ method in JavaScript?
42. What is the difference between a deep clone and a shallow clone of an object?
43. Explain the concept of the event delegation pattern.
44. What are the differences between JavaScriptโs โnullโ and โundefinedโ?
45. What is the purpose of the โargumentsโ object in JavaScript?
46. What are the different ways to define methods in JavaScript objects?
47. Explain the concept of memoization and its benefits.
48. What is the difference between โsliceโ and โspliceโ in JavaScript arrays?
49. What is the purpose of the โapplyโ and โcallโ methods in JavaScript?
50. Explain the concept of the event loop in JavaScript and how it handles asynchronous operations.
Web Development Best Resources:
https://t.me/WebsiteDesignLearningGroup
ENJOY LEARNING ๐๐
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