Jan van den Berg
Jan van den Berg
j11g.com
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Tech

There are 38 posts filed in Tech (this is page 1 of 4).

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Foster: how to build your own bookshelf management web application

foster/ˈfΙ’stΙ™/verb 1. Encourage the development of (something, especially something desirable). “the teacher’s task is to foster learning” TLDR: I made a personal bookshelf management web application and named it Foster and you can find it here. Here’s what I did (with gifs), so you might build your own. Name I named it Foster. Because of […]

in Books, Tech, Tips | 16 Nov 2019 | 2,230 Words | Comment

PHP: how did it become so popular?

PHP empowers a gigantic part of the internet. So it is, by definition, a very popular (i.e. prevalent) language. But it also very popular (i.e. well-liked) to dislike PHP as a — serious — language. This could be explained as one of the side effects of that same popularity. With great exposure, comes greater scrutiny. […]

in Tech | 17 Sep 2019 | 1,254 Words | 1 Comment

Popular post postmortem

Yesterday I wrote a story about how Git is eating the world. And in less than 24 hours more than 10.000 people visited this article! This is not the normal kind of traffic for this site. So that calls for its own article. Not only did the above WordPress plugin tell me I hit 10.000, […]

in Tech | 22 Aug 2019 | 768 Words | 1 Webmention | 1 Comment

Git is eating the world

The inception of Git (2005) is more or less the halfway point between the inception of Linux (1991) and today (2019). A lot has happened since. One thing is clear however: software is eating the world and Git is the fork with which it is being eaten. (Yes, pun intended). Linux and Git In 2005, […]

in Tech | 21 Aug 2019 | 793 Words | 2 Webmentions | 2 Comments

Gid – Get it done!

Last weekend I built a personal ToDo app. Partly as an excuse to mess around a bit with all this ‘new and hip’ Web 2.0 technology (jQuery and Bootstrap) πŸ™ˆ But mostly because I needed one, and I couldn’t find a decent one. Decent? Decent in my opinion would be: Self hosted Self contained Use […]

in Tech | 16 Aug 2019 | 332 Words | Comment

Create a Chrome bookmark html file to import list of URLs

I recently switched RSS providers and I could only extract my saved posts as a list of URLs. So I thought I’d add these to a bookmark folder in Chrome. However, Chrome bookmark import only accepts a specifically formatted .html file. So if you have a file with all your urls, name this file ‘url.txt’ […]

in Tech | 15 Aug 2019 | 175 Words | Comment

About WordPress, emojis, MySQL and latin1, utf8 and utf8mb4 character sets

PSA: the MySQL utf8 character set is not real Unicode utf8. Instead use utf8mb4. So you landed here because some parts of your website are garbled. And this happened after a server or website migration. You exported your database and imported this export or dump on the new server. And now your posts look like […]

in Tech | 12 Jul 2019 | 666 Words | Comment

Use PostgreSQL REPLACE() to replace dots with commas (dollar to euro)

If you have set up your database tables correctly you might be using double-precision floating numbers to store currency values. This works great because dollars use dots to represent decimals. The problem starts when it’s not actually dollars you are storing but euros, and maybe you need to copy query output to Excel or LibreOffice […]

in Tech, Tips | 28 May 2019 | 218 Words | Comment

Ten years on Twitter πŸ”Ÿβ€οΈ

Today marks my ten year anniversary on Twitter! There are few other web services I have been using for ten years. Sure, I have been e-mailing and blogging for longer, but those are activities — like browsing — and not specifically tied to one service (e.g. Gmail is just one of many mail services). And after […]

in Tech | 16 Feb 2019 | 983 Words | Comment

Can we replace paper?

Paper always beats rock and scissors. Because one of the few inventions greater than writing itself, is writing on paper. Paper writings are absolute, self-contained and transferable units of knowledge, which after publishing become and stay available and accessible for hundreds of years or more. Don’t take my word for it, there is this great […]

in General, Tech | 24 Dec 2018 | 413 Words | 2 Comments

Advent of Code

The yearly Advent of Code contest created by Eric Wastl is currently being held at adventofcode.com. That means the site is sprouting two daily programming challenges — until Christmas — to see who can solve them the fastest. But it is not just about being fast, of course, Advent of Code is also a great […]

in Tech | 3 Dec 2018 | 1,028 Words | 1 Comment

Save data from your broken Raspberry Pi SD card with GNU ddrescue

This week my Pi stopped working. After hooking up a monitor I saw kernel errors related to VFS. So the file system was obviously broken. Oops. The end conclusion is that the SD card is physically ‘broken’, but I still managed to salvage my data β€” which is more important than the card. Here’s how. […]

in Tech, Tips | 16 Aug 2018 | 351 Words | Comment

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