| Said to be the only book Steve Jobs had on his iPad | |
|
Autobiography Of a Yogi |
“He who lives to see two or three generations is like a man who sits some time in the conjurer’s booth at a fair, and witnesses the performance twice or thrice in succession. The tricks were meant to be seen only once, and when they are no longer a novelty and cease to deceive, their effect is gone.”
~ A quote from Arthur Schopenhauer,
read by Steve Jobs,
as found in the book, How Google Works
Welcome! This page contains direct links to all of the videos in my 100% Free Scala and Functional Programming (FP) Video Training Courses. When I say “100% Free”, I mean that there are no ads and no paywalls — all of the videos below are completely free to watch.
June 9, 2024: I’m pleased to announce the release of my new, free video course:
This video course picks up where my free “Introduction to Functional Programming” video course left off, and gives you all the background you need to get even further into ZIO 2 functional programming!
In terms of heat and humidity, Kentucky has all the benefits of living at the ocean. :)
A little meditation:
In all the history of the world,
And all its future,
The only thing that matters,
The only thing that’s real,
Is now.
This is my interpretation of the meaning of the Alanis Morissette song, Thank You (also known as Thank U). I don’t claim any special knowledge about the song; this interpretation of the lyrics is just based on my understanding of Zen, Buddhism, and also my practicing of yoga, specifically Iyengar yoga. If you’ve read some of the personal and Zen entries on this website about yoga, mindfulness, meditation, and Zen, you know a lot of what I know.
Here’s one more quote from Michael Piller’s book, Fade In. I think I read that Stephen King and other writers write a similar amount, usually five to ten pages a day. Many beginning writers try to sit down and write an entire book at once, but it’s important to know that writing is more of an endurance contest, not a sprint. Also, when you get tired not only does your productivity drop, but your creativity plummets.
As a little ZIO 2 example with Scala 3, here’s some code that starts to show how to use ZIO.timeout along with ZIO.attempt while accessing an internet URL with Scala’s Source.fromURL.
Basically all I’m doing is:
Source.fromURL,ZIO##timeoutHere’s the code:
Sometimes when you work as a consultant you get to work on fun, new “greenfield” projects.
Other times, you get called in to clean up a mess.
One day in late-May, roughly 15 years ago, I started a six-figure consulting deal because some applications were a mess. They were failing intermittently, and the company had let one or more developers go.
The first problem I ran into was that nobody that was left was sure what code was running in production. Rather than use a repository like Git, the developer had multiple copies of code laying around. From the timestamps you could see what the latest code was, but you couldn’t be sure that’s what was in production.
A nice thing about using ZIO in the Scala REPL is that it really demonstrates the whole “blueprint” concept. As shown in the example below, after I create the username variable, the REPL shows that username is basically just a data structure. Nothing happens at this time other than the creation of that data structure, which can be executed at a later time.
IMHO, once you dig into all the eastern religions, you’ll find people saying the same things, and just using different words.
One favorite quote comes from Sri Nisargadatta Maharaj, who said, “Just remember that you are the witness only ... even for a moment, do not think that you are the body.”
Anandamayi Ma was quoted as saying, “My consciousness has never associated itself with this temporary body.”
Those two quotes remind me of this great image that’s based on a Ram Dass quote about humans being spiritual beings who are having a human experience, and not vice-versa. (Also, I apologize, I don’t know who originally created this image, so I can’t give them attribution.)
As a brief note today, here’s a Scala 3 function that counts the number of vowels in the String it is given as input:
def countVowels(s: String): Int =
val vowels = Set('a', 'e', 'i', 'o', 'u', 'A', 'E', 'I', 'O', 'U')
s.count(vowels.contains)
Note that this works because as I have mentioned in other places, a Scala Set can be used as a function — specifically as a predicate — and the count function on the Scala sequence classes expects a predicate.
As a brief note today, and without much discussion, here’s a ZIO 2 ZLayer example I’ve been working on. The intent of the example is to show one possible way you can enable logging in a ZIO application using ZLayer.
As I mentioned, without much discussion, here’s the ZIO 2 source code:
Datline March 22, 2014: A little personal enlightenment:
After going unconscious several times during the last few weeks, I've had conversations with doctors, nurses, friends, and even a shaman about life, death, quality of life, goals, and desires.
I had a hard time answering some of their questions, and yesterday I realized why that was:
If you're truly living in the present moment, those questions don’t make any sense! You can't think about life, death, the past, or the future if you’re fully absorbed in the present moment.
“Are you afraid of dying?” / “I’m sorry, your fear has to do with the future, you’re not talking about the present moment.”
When planning for the future, live fully in that moment of planning for the future. When eating, just eat; and when writing text like this, just write. That’s all.
(In computer parlance, become single-threaded, where that one thread is only focused on HereNow.)
This is an ongoing blog post about “making the switch” from Google AdSense to Ezoic in 2024. If you’re just interested in updates over time, see the “Updates” section at the bottom of this article.
For a long time I was afraid to switch to another company besides AdSense because I had not heard of Ezoic and others, but after several weeks on their platform, I’m happy to say that all is well.
I should also say that in my defense, I was also busy with other things in life, and I thought that “making the switch” might take a while, but if you have existing AdSense and Analytics accounts, it doesn’t seem to take too long. The actual time I spent on a computer to make the changes was probably about 4-8 hours overall, but in calendar time it took a few days because of the AdSense and Analytics integration (waiting), and a few other configuration things I had to wait for. (So, several days in calendar time, but 4-8 hours in actual time.)
It’s also important to note that Ezoic is an AdSense partner, which I discuss more below.
In my post on Ram Dass’s best books — and in other articles on this website — I use words and phrases related to the work of Ram Dass, including terms on yoga, Hinduism, Maharaj-ji, Buddhism, meditation, mindfulness, mantras, and the different names of the man he called Maharaj-ji (aka, Maharaji, Neem Karoli Baba, Neeb Karori Baba). To help understand that article, as well as his speeches, books, and other writings, I have put together the following “Ram Dass Glossary of Terms”, and I hope it’s helpful to others.
I got a “chemo ninja” t-shirt like this one when I was recovering from thyroid cancer. Think I’m gonna need a new one after they remove part of my digestive system in about ten days.
“I’m going to have to resect the colon.”
Thanks to diverticula, diverticulosis, and diverticulitis, in 2018 I had to have a colectomy surgery, which is also known as a colon resection. This page is a diary of my colectomy experience.
I had two bouts of diverticulitis in the lower-left portion of my abdomen, once in 2015 and again late in 2017. After the second bout in 2017 the pain never went away completely, and would get significantly worse if I tried to eat normal, high-fiber foods like cereal, wheat bread, broccoli, etc.
Scala date/time FAQ: How do I calculate the difference between two dates in Scala? That is, while using Scala 2 or Scala 3, you need to determine the difference between two dates. Also, you want to use the newest Java date/time API for this work, such as the date/time API in Java 8, 11, 14, 17, etc.
If you need to determine the number of days between two dates in Scala — or Java or Kotlin — the DAYS enum constant of the java.time.temporal.ChronoUnit class provides the easiest solution:
| Said to be the only book Steve Jobs had on his iPad | |
|
|
Autobiography Of a Yogi |
