Presentation by Kyle Powers(@mfkp)‎ & Tyler Davis(@TylerMDavis) for while42 SF #7 hosted by ClearSlide

1. while42 meetup

2. JavaScript Sucks
How we deal with it

3. About Me
• Kyle Powers

4. About Me
• Kyle Powers
• Enterprise Cloud Meteorologist

5. About Me
• Kyle Powers
• Enterprise Cloud Meteorologist
• Also work on javascript 99% of my time

6. About Me
• Kyle Powers
• Enterprise Cloud Meteorologist
• Also work on javascript 99% of my time
• I like Sublime Text

7. JavaScript Quiz
Based on Gary Bernhardt’s “Wat” talk

10. WAT

14. WAT

17. WAT

20. WAT

27. WAT

30. WAT

31. End Quiz
• So how do we deal with this stuff?

32. How do we deal with this stuff
• Education

33. How do we deal with this stuff
• Education
• Testing

34. How do we deal with this stuff
• Education
• Testing
• Chrome developer console

35. Other bad things about JS
• Leaving off the “var” keyword makes a
variable global.

36. How we solve it
• When referencing a global variable “foo”, we
specify “window.foo” to make it clear that it’s
global

37. Other bad things about JS
• Callback hell

40. How we solve it
• Refactor – name functions outside of the
scope
• Keep functions shallow – usually no more than
2 levels deep
• Use the module pattern

41. "Write small modules that each do
one thing, and assemble them into
other modules that do a bigger
thing. You can't get into callback
hell if you don't go there.”
-Isaac Schlueter

42. Other useful tools
• type-check.js
• http://gkz.github.io/type-check/

44. If all else fails, blame it on IE6

45. Thanks
p.s. we’re hiring
kyle@clearslide.com
@mfkp