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General Q&A about programming, scripting, software design & architecture, process, tools, testing, and more.
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How can one differentiate what is or is not a *nix operating system even if that operating system (or its core/shell/common-utilities) allegedly behaves like any "other" *nix operating system? Is ...
I am trying to change the font type and size in a JTable cell. Ive looked at tons of posts and while most don't produce stack traces, they don't seem to do anything either. Here is the code I curr...
When creating a new Blazor Webassembly project, there is a checkbox ASP.NET Core hosted where if selected will create three projects at once, a blazor webassembly project, an ASP.NET Core project, ...
My project has the following set up for the production and preproduction ("clone") environment. Production is not accessible at all for the development team, only the preproduction database. Pr...
I have a couple of 3d example projects in gcode for my printer but the printer bed has a couple of bumps in the center (where things are printed by default) and in order to print the objects I woul...
I understand that any World Wide Web interaction works this way: Stage 1: Client (human or software) ⟶ User agent ⟶ HTTP/S web-server request (with an unresolved domain) Stage 2: ISP-initiated Rou...
I have a big Cypher query that is depending on a variable. Example: With REGION = 'Canada' query I want to execute this query several times based on different values on a list and return the UN...
Based on my understanding HTTP is something client and server speak in, I mean it is like a language for a server and client to communicate(not exactly a programming language). Then how to understa...
I have an HTML-PHP-CSS contact form with a date field: <input type="date" name="date" id="cf_input_date"></input> The default value in this field is the W3C built-in default: dd/m...
How do I create a flag that can be used multiple times in a command using the pflag package? For example, let's say I wanted to select multiple fields and did not want to have to use comma-separati...
For use in connection with conditional formatting with alternating coloured fills in OpenOffice Calc, several years ago a user of Super User was applying this Ruby script: f = File.readlines("sha...
I personally would define "escaping" in software development in general and coding in particular as follows: Making an exception to match data which otherwise would not be allowed to be matched: I...
I host my website on a PaaS-modeled, shared hosting environment by SiteGround which is quite a well known hosting company with (as I believe) well-venerated email servers. I am trying to create ...
What exactly must a C compiler do when it finds a compile-time error? The most obvious kind of errors are language syntax errors, but the C standard also speaks of constraints, which are rules tha...
I consider to make my website's contact form totally javascriptless (only HTML-PHP-CSS --- no JavaScript at all). No modals or alerts No prevent default No AJAX/AJAX/XHR/JHR No form disappear...
A presently unanswered question on Stack Overflow asks: Does there exist a popcount function in libreoffice calc? and clarifies that "I often use BASE(A1;2;8) to show a number in binary".
I have JSON that looks something like this: {"id":"n-fsdf-6b6", "name":"JohnSmith", "revisionDate":1591072274000} The JSON data is named CharacterInfo. It comes from a static external URL. The str...
As a person with no significant background in mathematics and computer science I thought that concatenation and AND are logically identical if not very similar because both add something to somethi...
I have decide to try out Julia. Is anyone aware of some good resources to get started with the language?
Say I want to implement a very basic group chat application. I use the H2 database, a user class, a controller, and a text file in the Resources folder that stores the chat texts. All texts would b...
I have added Swagger UI for an ASP.NET Core 3.1 application and I have realized that all endpoints requiring Windows Authentication fail. This issue is created by the fact that generated HTTP reque...
Microsoft.Build.Evaluation.Project seems to have some rather odd ideas of what values to use when loading projects. In particular, I have a number of projects with the following dependency: <Pa...
How do I mock tempnam() with vfsStream for code that uses it to create temporary files (for example, in a PHPUnit test)?
In response to a Q on Web Applications [WA] the asker self-answered with: =CONCATENATE("@ £/€ rate: ",text(J21,"0.00000")) The issue was that, with "in a cell J21 I have a set value 1.10000":. ...
Let's say we have two tables A and B and a join table C that has foreign keys to both A and B and the combination of those foreign keys is unique. One could either do a unique constraint or a comp...
I'm used to working in Python, but my current project is in C#/.NET and uses log4net for logging. Out of the box, log4net uses an XML file for configuration. I dislike XML and want to use something...
Angular CLI official page indicated how to install the CLI, but provides no information about how to upgrade it. I am interested in how to upgrade the CLI.
I wish to fill an array with strings, using Bash scripting. The strings are in a file, one per line. Here is what I've tried: declare -a my_array=() while read line; do my_array+=( "$line"...
I'm developing the design framework for a certain Q&A site. We are currently using an external dependency for the tag selector on the post editor, but it has some disadvantages (not fitting int...
I'm working on an API to respond some data about a bunch of orders and items. The order and item numbers are always an integer (it's the order.id and item.id value, respectively). Originally the re...
I have following setup: flutter plugin with an example app the plugin depends on a native library (flutter_plugin.podspec contains s.dependency 'native-lib', '0.1.0') for local development I pull ...
Given ColumnA contains a Text header (A1), an allowed maximum number (A2), fifty tickboxes (A3:A62) and a formula in A63 of: =countif(A3:A62,TRUE) how can I block application of more than the a...
Summary/Context I'm currently working to improve performance and throughput of our automation infrastructure, most of which is a combination of Bash/Shell scripts, Python scripts, Docker, Jenkins,...
Due to a series of unfortunate events I have some tables where the auto_increment value got behind what it should be. If the auto_increment value is 9 and there are 20 rows in the table the next 1...
I have a query that returns the owner of jobs on an SQL instance, select s.name as JobName , s.owner_sid , ISNULL(L.name,'AccessViaGroup') as LoginName --Trying to figure out how to turn that ...
I've noticed that a lot of sites have something like this going on: <div class="has-margin-0 has-padding-4"> <div>...</div> <div>...</div> ... </div>...
I need to rename one column in 170 tables in a MySQL database and its going really slow. The columns all have an index plus a foreign key on them, would dropping the index/temporarily removing the...
I can't get a response from IPv4 dig on my server but I can get one from IPv6 dig. See the below output: $ dig +short myip.opendns.com a @resolver1.opendns.com # Doesn't return anything, this used ...
An as yet unanswered OpenOffice Calc - Highlighting the higest value in multiple columns posted by Rui on Super User from early this year asked whether a condition was possible to: fill with a c...
Master lists like 82 food subreddits and 128 tech subreddits don't indicate each's subscribers. if it's private. Sometimes moderators can make the sub private for several days, to clean i...
Sometimes, either to reduce the amount of typing big table names or when joining a table to itself one will need to alias a table. Personally I find SQL statements with aliases harder to read and a...
A very recently asked Q on Web Applications has no answer yet (and, in my opinion, is so badly written may not receive an answer at all promptly). However it does seem (in my interpretation) to rai...
I understand data compression as making data structures nearer (if they are mere machine code without any abstract representation) or representing them in less and less abstract computer languages ...
I often find it useful to arrange things so that each commit on master's first-parent is a discrete change. It allows git log --first-parent --oneline to be used as a concise, automatically-generat...
My work tasks have recently started requiring me to use the type_traits header to restrict the classes that may be used in template functions, methods, and classes. And while I used it for a long t...
I am currently dealing with an Angular application that is being deployed using an CI orchestrator and Jenkins. Jenkins job is configured to do the following (relevant steps only): fetch source...
I have found this nice library for parsing/writing .elf files as output by e.g. the GCC toolchain: ELFIO I have a bare metal embedded project with an ARM Cortex M target. My goal is to overwrite...
I find myself often writing code like this. try { // code } catch( FailedReadException const & ex) { file.close(); std::cerr << "Read failure " << ex.readFailure() <&...
Is uint8_t guaranteed to be a character type if it exists? Will using a uint8_t* to examine bytes of an object cause violation of the strict aliasing rule? Is the following legal code: #include &l...
Some while ago a user of Web Applications asked after a function to avoid "an if/else just to handle negative numbers properly". Clarification provided was: Presently it round based on absolute...
