| Quiz | Tags | Good to Review |
|---|---|---|
| 1. Promise order | Promise | |
| 2. Promise executor | Promise | |
| 3. Promise then callbacks | Promise | ✅ |
| 4. Promise then callbacks II | Promise | ✅ |
| 5. block scope | Scope | |
| 6. Arrow Function | this |
✅ |
| 7. Increment Operator | Increment ++ |
|
| 8. Implicit Coercion I | Type coercion | ✅ |
| 9. null and undefined | null & undefined |
✅ |
| 10. Equal | Equality == |
✅ |
| 11. Implicit Coercion II | Type coercion | ✅ |
| 12. arguments | arguments |
✅ |
| 13. Operator precedence | Type coercion, Operator precedence | ✅ |
| 14. Addition vs Unary Plus | Type coercion, Unary plus +, Addition + |
✅ |
| 15. instanceOf | instanceof |
✅ |
| 16. parseInt | Array.prototype.map(), parseInt() |
✅ |
| 17. reduce | Array.prototype.reduce() |
|
| 18. Promise executor II | Promise | ✅ |
19. this |
this |
✅ |
| 20. name for Function expression | Function expression | |
| 21. Array I | Sparse array | ✅ |
| 22. min max | Math.min(), Math.max() |
✅ |
| 23. Promise.all() | Promise | |
| 24. Equality & Sameness | Equality ==, Object.is() |
✅ |
| 25. zero | Math, Object.is() |
✅ |
| 26. true or false | Truthy & falsy, Logical NOT !, Boolean |
|
| 27. Hoisting I | Hoisting | |
| 28. Hoisting II | Hoisting | |
| 29. Hoisting III | Hoisting | ✅ |
| 30. Equal II | Equality == |
✅ |
| 31. Math | Math | |
| 32. Hoisting IIII | Hoisting | ✅ |
33. this II |
this, Grouping operator (), Comma operator , |
✅ |
| 34. precedence | Operator precedence, Unary plus +, Addition +, Increment ++ |
✅ |
| 35. Implicit Coercion III | Type coercion | ✅ |
| 36. Promise.prototype.finally() | Promise | ✅ |
| 37. push unshift | Array.prototype.push(), Array.prototype.unshift() |
|
| 38. Hoisting IV | Hoisting | ✅ |
| 39. var | var |
✅ |
| 40. RegExp.prototype.test | RegExp.prototype.test() |
|
41. this III |
this, IIFE |
✅ |
| 42. Hoisting V | Hoisting, Conditionally created functions | ✅ |
| 43. JSON.stringify() | JSON.stringify() |
|
| 44. Function call | Function call | ✅ |
| 45. Hoisting VI | Hoisting, IIFE | |
| 46. Implicit Coercion IV | Type coercion | |
| 47. Promise Order II | Promise | ✅ |
| 48. Prototype | Prototype | ✅ |
49. this IV |
this |
|
| 50. async await | Async/await, Promise |
|
| 51. method | Method definition | ✅ |
| 52. requestAnimationFrame | requestAnimationFrame() |
✅ |
| 53. Prototype 2 | Prototype | |
| 54. setTimeout(0ms) | setTimeout() |
|
| 55. sparse array | Sparse array | ✅ |
| 56. to primitive | Type coercion, Symbol.toPrimitive, parseInt() |
|
| 57. non-writable | Object.defineProperty() |
|
| 58. inherit getter setter | Getter & setter | |
| 59. override setter | Getter & setter | |
| 60. postMessage | Web messaging | ✅ |
| 61. onClick | Click event | |
| 62. MessageChannel | Web messaging | ✅ |
| 63. in | in operator |
|
| 64. reference type | this, Grouping operator () |
|
| 65. Function name | Function expression | |
| 67. if | Hoisting, Conditionally created functions | |
| 68. if II | Function expression | ✅ |
| 69. undefined | arguments | |
| 70. function | Hoisting | |
| 71. two-way generator | Generator | ✅ |
| 72. Array length | Array.prototype.length |
|
| 73. window name | Window.name |
|
| 74. Typed Array length | Typed array | |
| 75. meaningless calculation | Type coercion, Bitwise operator | |
| 76. const | var, const |
✅ |
| 77. parseInt 2 | parseInt() |
✅ |