Beginners Guide to Software Development – Part 3: Basic JavaScript Data Types

11 Comments on “Beginners Guide to Software Development – Part 3: Basic JavaScript Data Types”

1. seminims seminininims??? or seminininimmininimimsss>>???? it’s very fun

2. This is the first time I’ve ever thanked anyone for their youtube videos
   instructional or otherwise. THANK YOU!

3. Think null and undefined are confusing? Try typing NaN === NaN into the
   console. It returns “false” because NaN (Not a Number) is not equal to
   anything, including itself! So, NaN !== NaN returns “true”.

   Incidentally, besides “pop”, there’s “shift” to remove elements from the
   beginning of an array. There’s also “push” to add elements to the end and
   “unshift” to add them to the beginning. One trick I use to remember the
   purpose of shift vs unshift is to call them “shave” and “unshave”. Shaving
   is a morning activity (for most of us) so it has to do with the beginning
   of the day (“day” rhymes with “array”). Also, to shave a beard is to remove
   it and to unshave it is to let it grow! (Sometimes it’s necessary to come
   up with crazy analogies like this to remember JavaScript stuff.)

4. awesome videos man. I actually am learning something from these compared to
   other tutorials. Btw, has anyone told you you look like Will Forte? lol

5. I have been a member on Youtube for years and have never thought about
   subscribing to anyone’s channel, but you sir are a true gem. I guess you
   will be the first youtuber I’ve ever subscribed to, because I’m getting
   ready to go all in. It’s like I’m losing my Youtube virginity for the first
   time, but I’m ready… lol. Thanks man, you make learning fun and awesome.
   I subscribed.

6. Great video Jesse, lol at the curly braces comment. Looking forward to the
   other parts!

7. That’s because JavaScript “interprets” or “knows” it’s a Number. In
   strongly typed languages, you HAVE to say it’s a Number, and it’s very
   strict. In fact, the next version of JavaScript after Harmony may have some
   form of manual type hinting. For example, here’s JavaScript now: var
   myNumber = 2; and here’s TypeScript (Microsoft’s version of future
   JavaScript): myNumber:number = 2; and here’s ActionScript, what Flash
   evolved JavaScript to: var myNumber:Number = 2;

8. Also, JavaScript is pretty loose and weird how it handles Numbers vs.
   Strings. Go watch Destroy All Software’s “Wat” video, I’ve put the link the
   description.

9. 8:42 im laughing since a couple of days about it :DDD such a nice person
   with best humour. thank u for being!!

10. Hey Jesse how come you don’t have to put speech marks for numbers?

11. new rule: no more videos recorded before 11am….

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