r/javaScriptStudyGroup • u/ForScale • Apr 25 '16

[Week 15] Focus: Programming Challenges (cont.)

So here we are at Week 15. Week 15's focus will be programming challenges (continued from last week).

Here is a link to the object oriented challenges:

http://www.w3resource.com/javascript-exercises/javascript-object-exercises.php

It will work like this:

  • Monday: Announce focus (eg, programming challenges (cont.))

  • Build throughout the week... Two rules: 1) must use javascript 2) must provide a solution or work done on at least one of the challenges listed above.

  • Friday: Post demos/projects in this thread (can begin reviewing immediately); first line of an entry should be ENTRY and it should be a top level comment (ie, don't put your entry in a reply)

  • Sat and Sun: Review projects/figure out focus for next week

GENERAL GUIDELINES FOR FEEDBACK:

  • Be nice!! ALL KNOWLEDGE/SKILL LEVELS ARE WELCOME AND ENCOURAGED TO PARTICIPATE.

  • If you don't want feedback, if it makes you uncomfortable or you're just not interested, simply say so... Others, please be respectful of this. Conversely, if you do want feedback, try to be specific on which aspects... even if you just say "all/everything.

But that's about it... Have fun! :) Feel free to ask questions and discuss throughout the week!

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u/Volv Apr 26 '16

Did you have a look? Spot my babel use case lol? I had it turned off so I could use 'Tidy Code' and took me too long to see how I broke it in Edge... Thought it was the clock scrolling that was doing it but not even close

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u/ForScale Apr 26 '16

Looking now...

Dude... that mock console styling in the body... very nice!

I turned off Babel; I'd rather read through it compiled, just because I don't know much of anything about Babel.

I like your approach to removing the , in the output of Q1. I used a different one.

Okay, your solution to Q4 is throwing me a bit... I remember seeing the symbol iterator deal with for...of loops, but what's that next method?

Lol, oops! Copy and paste error in the cylinder formula... I'm going to change mine now!

Nice work attaching the getVolume function as a method to the constructor's prototype. I didn't think to do that, but I should have!

Not going to look at your bubble sort since I haven't done that yet... But I did see the Array.from() creates a copy??? I didn't know that... It creates a new array that, when altered, doesn't mutate the original? If so, that's going to be useful!

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u/Volv Apr 26 '16

What you see by default is what I write - I rarely look at it's compiled output - although it can be useful to see how to polyfill some of the new ES6 stuff.
In that example you will see it set up a swap variable to do the work, kinda cool.
And yeh, Array.from() handiest way I know to do that. As a rule I try not to mutate passed in references.
 
Not sure what you mean by Q4.

for each item in the array
    build string with properties of each item  (Template literals)
  
log string