The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Conferences’ Category

Kevlin Henney on encapsulating and restricting Mutability of State to improve software quality

Posted by jpluimers on 2025/06/04

Important read (5 minutes or so): [Wayback/Archive] Restrict Mutability of State. When it is not necessary to change, it is necessary not to change… | by Kevlin Henney | Feb, 2025 | Medium

Via [WaybackSave/Archive] Kevlin Henney on X: “Blogged: Restrict Mutability of State “What appears at first to be a trivial observation turns out to be a subtly important one: a great many software defects arise from the (incorrect) modification of state.” “

--jeroen

Posted in Conference Topics, Conferences, Design Patterns, Development, Event, Software Development, Systems Architecture | Leave a Comment »

“How come these shapes are so DIFFICULT??”

Posted by jpluimers on 2025/06/03

Cool video about how developers feel when others (like QA) test or use the software they have just built:

[Wayback/Archive] Devs watching QA test the product – YouTube

I got to the video via [Wayback/Archive] sanja zakovska 🌱 on Twitter: “Devs watching QA test the product… “ to which the author responded with

[Wayback/Archive] Alison Burke on Twitter: “@sanjazakovska Incase anyone needs the resolution 😂😂 follow me on tiktok! vm.tiktok.com/ZMJKeK29a

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Posted in Conference Topics, Conferences, Dark Pattern, Development, Event, Software Development, Testing, User Experience (ux) | Tagged: , , , , , , , , , , , , , , | Leave a Comment »

Naming things isn’t hard: if it contains a number, include the unit in the name (your timeout might not be in nanoseconds)

Posted by jpluimers on 2025/05/27

This case, it was C# accessing a SQL back-end, but the responses to the Tweet how so many more examples not even related to software development.

Remember that plane crashing because they overloaded while they thought the fuel load numbers were in Imperial pounds where in fact they were in metric kilograms?

That’s why naming things that contain numbers should contain the unit in their name!

Related blog post: Watch “Felienne Hermans: How patterns in variable names can make code easier to read” on YouTube

Tweet: [Wayback/Archive] Nick Craver on Twitter: “Troubleshooting a hanging test suite and godDAMMIT. “In seconds”. Integer timeouts should be a felony offense punishable by an indeterminate amount of seconds/milliseconds/hours/fortnights/whatever the judge chooses.”

var csb = new SqlConnectionStringBuilder(TestConfig.Current. SQLServerConnectionString){ ConnectTimeout = 2000 }; int SqlConnectionStringBuilder.ConnectTimeout { get; set; } Gets or sets the length of time (in seconds) to wait for a connection to the server before terminating the attempt and generating an error. Returns: The value of the SqlConnectionStringBuilder, ConnectTimeout property, or 15 seconds if no value has been supplied.

var csb = new SqlConnectionStringBuilder(TestConfig.Current. SQLServerConnectionString) { ConnectTimeout = 2000 }; int SqlConnectionStringBuilder.ConnectTimeout { get; set; } Gets or sets the length of time (in seconds) to wait for a connection to the server before terminating the attempt and generating an error. Returns: The value of the SqlConnectionStringBuilder, ConnectTimeout property, or 15 seconds if no value has been supplied.

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Posted in .NET, Agile, C#, Code Quality, Conference Topics, Conferences, Database Development, Development, Event, Software Development, SQL, SQL Server, Systems Architecture | Leave a Comment »

Exceptions and DLL in Delphi – Stack Overflow

Posted by jpluimers on 2025/05/20

Every once in a while I discover an answer I have not yet put on my blog, especially as related answer are always interesting.

This is one that didn’t make it until now: [Wayback/Archive] Exceptions and DLL in Delphi – Stack Overflow (thanks [Wayback/Archive] jpfollenius, [Wayback/Archive] Deltics and [Wayback/Archive] Lars Truijens)

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Posted in Conference Topics, Conferences, Delphi, Development, Event, Software Development, Undocumented Delphi, Windows Development | Leave a Comment »

More early Pascal history (way before Delphi; before Turbo Pascal and Quick Pascal)

Posted by jpluimers on 2025/05/07

The people knowing about the really early Pascal history are a dying breed. So before I pass away (see the posts on my rectum cancer), let me post a few more links here that based on yesterday’s Trip down memory lane: book on p-Code based UCSD Pascal which I ended with:

I learned a few more things from [Wayback/Archive] What do you think about something like Pascal bytecode? (Page 2)

Here we go:

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Posted in archive.is / archive.today, Conference Topics, Conferences, Development, DVCS - Distributed Version Control, Event, gist, GitHub, Internet, InternetArchive, LISP, Pascal, Power User, Software Development, Source Code Management, Standard Pascal, UCSD Pascal, WayBack machine | Tagged: , , , , , , , , , , , , , , , , , , , , , , , , , | Leave a Comment »

Trip down memory lane: book on p-Code based UCSD Pascal

Posted by jpluimers on 2025/05/06

Last week I wrote on File scoped namespaces – C# 10.0 draft specifications | Microsoft Learn, promising to write more on p-Code and UCSD Pascal. That’s now (:

I started with [Wayback/Archive] “java byte code” “ucsd” “p-code” – Google Search as I was looking for really old material on this (Java 1.0 versions became available in the 1994-1995 time frame, and a lot of material back then either did not make it to the World Wide Web (which slowly gained popularity around that time, see History of the World Wide Web) or has vanished due to link rot.

The cool thing is that many “new” people are not even aware of p-Code, as the 2019 thread [Wayback/Archive] What do you think about something like Pascal bytecode? shows.

I learned a thing or two from it as well, for instance that there has been a “recent” book on UCSD Pascal:

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Posted in Apple Pascal, Conference Topics, Conferences, Development, DVCS - Distributed Version Control, Event, gist, GitHub, History, Internet, link rot, Pascal, Power User, Software Development, Source Code Management, Standard Pascal, Turbo Pascal, UCSD Pascal, WWW - the World Wide Web of information | Leave a Comment »

Some posts on example domains and example IP-ranges (IPv4 and IPv6)

Posted by jpluimers on 2025/05/05

Here are some of my blog posts on documenting using example domains and example IP-addresses or IP-ranges:

(I really wish that example.org and others would service SMTP with blackhole routing so one can also use it for bogus email addresses in documentation)

The blog posts above were incomplete (IPv6 was missing; IPv4 was not explained), so below are more links that do a better job based on a Tweet from [Wayback/Archive] Julia Evans (@b0rk).

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Posted in Conference Topics, Conferences, Development, DNS, documentation, Event, Infrastructure, Internet, IPv4, IPv6, Power User, Software Development | Leave a Comment »

Some SQLite things I recently learned a while ago

Posted by jpluimers on 2025/04/30

More on the reason why I learned a few SQLite things soon, but for my link and documentation archive, below is what I learned.

Most commands use the database file C:\temp\History which has no extension as that is how I got the file in the first place (spoiler: it’s a Chrome browser History from one of my user profiles).

Let’s get started:

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Posted in *nix, *nix-tools, bash, CommandLine, Conference Topics, Conferences, Console (command prompt window), Database Development, Development, Event, Power User, PowerShell, PowerShell, Software Development, SQL, SQLite | Leave a Comment »

Finding most recent forks of gists and github repositories

Posted by jpluimers on 2025/04/24

A while ago I found out that gist.github.com/lynatan/673e574faa8343fa01d7a91e75065c54 which I mentioned before in Delphi analog to C# ?? null-coalescing operator and Light Table like debugger evaluation and I wanted to

  1. find it back
  2. find the most recent forks of it

The reason was that I was working on the [WaybackSave/Archive] bit Time Professionals on X: “Live now: “Hidden Gems of Delphi Language: Operator Overloading and Class/Record helpers” @jpluimers” session which I presented at [Wayback/Archive] ITDevCon 2024 | Home where I also could enjoy the company of the other [Wayback/Archive] ITDevCon 2024 | Speakers and the famous [Wayback/Archive] IT DevCon 2024 speaker dinner (which attendees can also join for a slight surcharge).

The presentation is at [Wayback/Archive] ITDevCon2024/delphi_language_hidden_gems/delphi_language_hidden_gems.md at main · jpluimers/ITDevCon2024 · GitHub and pictures of the event at [Wayback/Archive] ITDevCon2024 – Google Photos.

Back to the problem at hand

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Posted in Conference Topics, Conferences, Delphi, Development, DVCS - Distributed Version Control, Event, gist, GitHub, ITDevCon, Software Development, Source Code Management | Leave a Comment »

Rephrasing error messages into heulpful messages

Posted by jpluimers on 2025/04/15

The problem with error messages is that they just displays errors as a fact without providing the user of future steps.

Offer them with a helpful, actionable message instead.

Not just for people with a visual impairment, I added readable text to the image below.

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Posted in accessibility (a11y), Conference Topics, Conferences, Development, Event, Software Development, Usability, User Experience (ux) | Tagged: | Leave a Comment »