ES6 Tutorial - #3 Arrow Functions and Lexical 'this'

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00:15 Regular Functions
01:46 Arrow Functions
07:20 Lexical Scoping of 'this'
13:38 Alternative approaches

Next in the series is arrow functions that bring about a more concise and clear syntax for working with functions in ES2015. We'll explore a few caveats as far as arguments and function body go, and will close up with a discussion about 'this` keyword.

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Great content! Alex does a great job with these ES6 videos because he seems to prepare you for future videos where he is writing larger apps. I've been working with JS for a loooong time but these videos seem to fill in the gaps of somethings that I wasn't aware of. I share Alex's videos with people that I work with all the time.

haciendadad

If you are newer to JS, .map is a built-in utility array manipulation method that comes in JavaScript, for specifications Google ".map MDN Javascript". 3:14 this is also known as an "implicit return" in JavaScript jargon. Understanding Lexical 'this' is also vital as It's not uncommon to see Jr. developers working in a framework like React that perhaps do not have core JS knowledge and confuse this knowledge to be React related. Great videos from Code Realm, from the very beginning to the most recently uploaded.

Codecrafting

I've been learning JS for a little over a year now and I always wondered why I get undefined when printing something into the developer tools. Now I know it's the log method! Thx!

jfur

This tutorial is great! I had to rewatch it a couple of times and read up on some topics but now it makes perfect sense. Thx a lot!! :D

espanol

That was super duper awesome man! Keep rocking

astrix

wow man you are literally a SuperHero!!

Jadestonk

Sir, everything is great, but one thing, could you please make the fontsize bigger or move the camera closer, since i found it hard to read.Thank you.

chamnil

Make tutorial on meditation pls, I tried it a few times but I always loose track of it...

hummingbird

Larger font please if you have the extra room. Thanks

haciendadad

fonts too small to be seen on a smartphone. increase font size please.

davidroderick

ES6 Tutorial - #3 Arrow Functions and Lexical 'this'

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