14 Must Know Dev Tools Tricks

Thanks Douglas Adams for the sage-like advice. www.douglasadams.com/creations/hhgg.html
Screenshot of dev tools tutorial.

Screenshot of dev tools tutorial.

Today’s tutorial on Wes Bos’ course “JavaScript 30” was all about using dev tools to debug JavaScript and titled “14 Must Know Dev Tools Tricks”.

As I said before JavaScript has come a LONG way since I studied it properly in 2010. I’m not sure if the Web Console was part of Firefox back then but it is super slick and very helpful. We’ve been using console.log() regularly in the other tutorials and it was interesting to see how to send other information there such as warning, error and info messages. You can even style your console message with CSS styles which looks fun.

Array Cardio Day 2

Array Cardio Day 2
Array Cardio Day 2

Array Cardio Day 2

In today’s edition of “Array Cardio” we were working with two arrays, one of people and another of comments.

The people array had birth years associated with their names. The array methods .some and .every were used to determine if some or all of the people were over the age of 19. To detemine the person’s age the current year was retrieved via the Date() instance, the person’s birth year was subtracted from that and what remained was the person’s current age.

In the comments array the .find method was used to find the array index number of an item with an particular id number. .slice was then used to split the array at the point of the item we had found. This was then spread into a new array. I like to think of this as a form of non-destructive array editing. ????

Revisiting JavaScript, my long lost friend.

A screenshot from the "Array Cardio" tutorial.

A screenshot from the “Array Cardio” tutorial.

Exciting times ahead, I’m currently working through the vanilla JS course at javascript30.com by Wes Bos. I stumbled across his CSS Grid course a couple months ago and just learnt so much then. This course is shaping up to be just as enriching.

What I’m really finding interesting about studying JavaScript in 2018 are the changes that have come about since ES6 || ES2015, especially how variables have progressed.

I’ve bought Sitepoint’s “Javascript, from Novice to Ninja: Edition 2“. I find that reading this book when I’m not doing tutorials re-enforces what I’m learning and fills in the gaps.

JS socially speaking I’m looking forward to my EPIC friend Jeff Knaggs presenting at the next CHCH.JS meetup session. If “building a small React app, using setState for state management” sounds like your thing I’ll see you there!

Until next time,