“Kotlin Quick Reference” book

Table of Contents1 - Kotlin Quick Reference2 - It’s free3 - It’s open source4 - A caveat5 - Contributing6 - The Kindle version7 - Downloads

Somewhere in mid-2017 I started working on a Kotlin programming book, but then I had to get away from it to work on other things. When I got back to it recently I looked around and felt like the world didn’t need another “Introduction to Kotlin” book — there are a couple of good ones out there, including Kotlin in Action, and the documentation is excellent — so I decided to ditch the project completely.

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Kotlin Quick Reference

But then when I started writing some Kotlin code again I realized that what I really needed was a quick reference. I didn’t want to have to dig through a tutorial book or website to find what I need, I just wanted something like a large cheat sheet where I could quickly find the Kotlin syntax and examples for whatever I was working on at that moment. So I decided to strip down what I had already written and create both a book and a Kotlin Quick Reference website.

“Hello, Scala” - A swift introduction to a scalable programming language

I wrote the Scala Cookbook for programmers looking for solutions to common Scala problems, and then wrote Functional Programming, Simplified for programmers looking for a simple way to learn functional programming. A few months ago I decided to finish my Scala trilogy and write a book for programmers who don’t know Scala and want a quick introduction to it. With that, Hello, Scala was born:

Hello, Scala

A Scala shell script to insert text before a matching pattern

I don’t remember exactly why I wrote this Scala shell script, but if I remember right I was having a problem getting sed to work properly, so I wrote this little script to insert an Amazon Kindle “break” tag before each <h1> tag in an HTML file:

A Scala shell script to read HTML H1 tag attributes

I’m putting this Scala shell script out here as a “source code snippet” so I can find it again if I need it. This file reads an input file that contains a series of HTML <h1> tags. I use this as part of a process of publishing an Amazon Kindle ebook from an HTML file, and in one of the steps of the creation process, I use this script to help create the Table of Contents (TOC) for the book.

Here’s the source code: