Cheatography
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Top JavaScript Interview Questions
This is a draft cheat sheet. It is a work in progress and is not finished yet.
1 - 10
1. Hoisting |
2. let, var and const |
3. event loop |
4. == and === |
5. event delegation |
6. this |
7. cookie, localStorage and sessionStorage |
8. <script>, <script async>, and <script defer> |
9. null, undefined and undeclared |
10. call() and apply() |
10 - 20
11. Function.prototype.bind() |
12. arrow syntax |
13. prototypal inheritance |
14. function |
15. function |
16. anonymous function |
17. various ways to create objects in js |
18. closure |
19. HOF |
20. ES2015 class constructor and ES05 function constructor |
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20 - 30
21. event bubbling |
22. event capturing |
23. mouseenter and mouseover |
24. use strict |
25. use of promise instead of callback |
26. sync and async operation |
27. AJAX |
28. adv and disadv of AJAX |
29. XMLHttpRequest and Fetch api method |
30. abort an web request using abortcontroller |
30 - 40
31. JS polyfills |
32. extending the built-in objects in js |
33. global scope |
34. commonjs and es module |
35. various data types in js |
36. iterating over the object properties and array items |
37. spread and rest syntax |
38. iterators and generators |
39. mutable and immutable |
40. map and plain objects |
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40 - 50
41. map/set and weakmap/weakset |
42. class static members |
43. symbols used for |
44. server-sent events |
45. object properties flags and descriptors |
46. object getter and setter methods |
47. proxies of javascript |
48. tools and techniques of debugging the javascript. |
49. web worker in javascript |
50. garbage collection of works in javascript |
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