What the JavaScript?

You've heard years of complaints about JavaScript and how many WTFs it has. It's certainly popular to be in the "I use JS but it's a crazy language" camp. But is it really riddled with bad design?

There are definitely some legitimate WTFs, but they're most likely not the things you think. We're going to meander through of bunch of the weird corners of the language -- not the usual suspects -- and then look FORWARD to the new WTFs that ES6 (or ES2015 or whatever) has in store for us.

If you're looking for the "bad parts" to avoid, ditch everything you've heard before and "let" these dance in your nightmares.

Transcript

1. what the... JavaScript? kyle simpson http://getify.me @getify http://www.waxoil.com/art/alternative/strange-art-leaf.gif
2. defend, hate
3. wtf: not just funny
4. wtf: not a bug, not just ugly
5. wtf: not cross browser quirks
6. wtf: inconsistent, incoherent, unreasonable
7. TC39: great!
8. JavaScript: great... and getting better!
9. most wtfs...not
11. warmups
12. wtf
13. wtf
14. wtf
15. coercion
16. not wtf
17. not wtf
18. not wtf
19. wtf
20. moar coercion
21. wtf
22. wtf
23. wtf
24. wtf
25. wtf
26. wtf
27. empty slots
28. wtf
29. wtf
30. wtf
31. wtf
32. switch default break
33. wtf
34. finally
35. wtf
36. not wtf
37. wtf
38. wtf
39. wtf
40. wtf
41. generators
42. not wtf
43. not wtf
44. not wtf
45. not wtf
46. not wtf
47. not wtf
48. wtf
49. wtf
50. wtf
51. tdz: temporal dead zone
52. wtf
53. object destructuring
54. not wtf
55. not wtf
56. not wtf
57. not wtf
58. not wtf
59. wtf
60. wtf
61. not wtf
62. not wtf
63. wtf
64. default param values
65. not wtf
66. wtf
67. wtf
68. "class"es
69. wtf
70. wtf
71. I'm being generous --> not wtf
72. I'm being generous --> not wtf
73. wtf
74. wtf
75. wtf
76. wtf
77. wtf
78. wtf
79. sigh
80. haters gonna hate still gonna JavaScript
81. always bet on JavaScript ...and its wtfs
82. thanks! kyle simpson http://getify.me @getify