Archive for the ‘Conference Topics’ Category
Posted by jpluimers on 2025/12/16
[Wayback/Archive] version control – How can I see the changes in a Git commit? – Stack Overflow (thanks [Wayback/Archive] laktak, [Wayback/Archive] Nevik Rehnel, [Wayback/Archive] Juuso Ohtonen and [Wayback/Archive] User c z – Stack Overflow)
This looks like a valid question, but in reality it is not.
The thing is: in git, think of a commit not as a diff but as a snapshot*.
A diff is the difference between two commits.
Since most commits have just a single parent, so that’s why many people call a commit a diff. But that’s not true, especially not for merge commits that have at least two parents.
Anyway, the question, answer and comment from the link above already give some insight (note COMMIT everywhere below has to be replaced with the commit hash):
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Posted in Conference Topics, Conferences, Development, DVCS - Distributed Version Control, Event, git, Software Development, Source Code Management | Leave a Comment »
Posted by jpluimers on 2025/12/11
Despite UML (Unified Modelling Language) not having a specific diagram mode for computer networks, PlantUML does support a computer network diagram mode.
Here are some links that got me going to design a site to site VPN situation that I will document in more detail later on this blog.
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Posted in Conference Topics, Conferences, Development, Diagram, Event, PlantUML, Software Development, UML | Leave a Comment »
Posted by jpluimers on 2025/12/04
I used [Wayback/Archive] How could i get a permanent link for raw file? · community · Discussion #22537 · GitHub to go
The reason I needed it is that for quite a while now, GitHub has started to display PDF files as preview, and modified the download behaviour to get a blob: link instead of the actual raw file download location.
On the to do list:
- figure out the same for raw files in gists
- figure out the same for GitLab
- convert these into Bookmarklets (fiddle with the bold parts in the above URLs)
Thanks [Wayback/Archive] Lotaristo (Czeslaw Meyer) and [Wayback/Archive] byrneh (Hugh Byrne)
--jeroen
Posted in Bookmarklet, Conference Topics, Conferences, Development, DVCS - Distributed Version Control, Event, gist, git, GitHub, GitLab, Hosting, JavaScript/ECMAScript, Power User, Scripting, Software Development, Source Code Management | Tagged: 22537 | Leave a Comment »
Posted by jpluimers on 2025/10/21
This is so cool: graphical [Wayback/Archive] Introduction to the A* Algorithm
It is still being updated, which is even cooler:
Created 26 May 2014, updated Aug 2014, Feb 2016, Jun 2016, Jun 2020, Jul 2023
These are for general graph traversal. That Wikipedia article only mentions depth-first search and breadth-first search, but forgets the A* search algorithm which is an extension of the also not mentioned Dijkstra’s algorithm which in turn is based on breadth-first search.
The visualisations cover the breadth-first algorithms.
The example code is Python based, but easy to translate into other languages.
The visualisation code is in JavaScript, using these files (they Archive.is versions are more accurate than the Wayback Machine ones):
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Posted in Algorithms, Conference Topics, Conferences, Development, Event, Python, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2025/10/14
I forgot how I bumped into this, but a while ago I found this interesting 2023 post: [Wayback/Archive] It’s Time For A Change: datetime.utcnow() Is Now Deprecated – miguelgrinberg.com explaining naive (without time zone) and aware (with time zone) date time objects.
It reminded me of Delphi, where NowUTC – as Delphi does have neither naive or aware date time objects – returns a floating point value (yes, it has a separate TDateTime type, but it represents the number of days that have passed since December 30, 1899 which in face stems from the Windows OLE Automation era* (OLE Automation is a subset of COM), see [Wayback/Archive] DateTime.ToOADate Method (System) | Microsoft Learn.
That method is mentioned in [Wayback/Archive] Why You Should Use NowUTC Instead of Now in Delphi: A Quick Guide – YouTube and Delphi deserves a way better infrastructure of date and time handling.
So this post is also a reminder to myself: figure out if there is an object oriented DateTime library for Delphi yet, and if not see if there is interest to create one similar to [Wayback/Archive] Noda Time | Date and time API for .NET by Jon Skeet.
Delphi references
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Posted in .NET, .NET Framework, .NET Standard, C#, Conference Topics, Conferences, Delphi, Development, Event, Jon Skeet, Python, Scripting, Software Development | Leave a Comment »
The Wiert Corner - irregular stream of stuff 