JavaScript had A LOT of major changes when it was updated to ES6 (and beyond) one of those changes affects one of the very first things you learn about JavaScript and I just feel that it's more efficient to begin learning with ES6 from the very start, Colt's course doesn't mention ES6 at all.

The course also doesn't talk about how to make sites responsive without the use of Bootstrap and that's a VERY big hole in the curriculum. It also uses Bootstrap 3 instead of 4 and there were a lot of changes between those versions both in Syntax and Bootstrap 3 incorporating LESS, while Bootstrap 4 incorporates SASS and flexbox.

The course also doesn't mention flexbox at all, and flexbox changed a lot of how positioning in CSS works for the better, the old way was one of the most complicated things for new developers to grasp.

While SASS and using SASS with bootstrap is a ways away for a beginner, I think it's important to have the best foundation of knowledge for when you do get there.

The course also teaches jQuery which is getting less and less used by the day and there's really no need for it after everything that ES6 added to regular JavaScript.

Basically the course teaches you how to be a web developer in 2014 and sets you back, instead of just learning how things are done in 2018.

I think a much better course is - https://www.udemy.com/the-complete-web-developer-in-2018

Explanation of Currying, Functional Programming

All the fundamentals in JavaScript for React applications. Often React newcomers realize that most of the learnings are JavaScript, because React has only a small API ...

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public-apis - A collective list of public JSON APIs for use in web development.