Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »
Q&A

Welcome to Software Development on Codidact!

Will you help us build our independent community of developers helping developers? We're small and trying to grow. We welcome questions about all aspects of software development, from design to code to QA and more. Got questions? Got answers? Got code you'd like someone to review? Please join us.

General Q&A about programming, scripting, software design & architecture, process, tools, testing, and more.

Filters (None)
75%
+4 −0
What does "namespace" mean?

A well-known easter egg in Python displays some ideas about writing good Python code, credited to Tim Peters (one of the core developers). This question is about the last: Namespaces are one hon...

2 answers  ·  posted 3mo ago by Karl Knechtel‭  ·  last activity 3mo ago by Olin Lathrop‭

88%
+14 −0
Why are list comprehensions written differently if you use `else`?

The following list comprehension worked when I tried it: [num for num in hand if num != 11] But this doesn't work: [num for num in hand if num != 11 else 22] It gives a SyntaxError, highlightin...

2 answers  ·  posted 2y ago by true_blue‭  ·  last activity 3mo ago by Karl Knechtel‭

62%
+3 −1
How does a client verify a server's SSL certificate? What are the specific steps?

I have little to no idea what happens after a client obtains the server's certificate. It has to make sure that it (somehow) valid, but how?

1 answer  ·  posted 3mo ago by toraritte‭  ·  edited 3mo ago by toraritte‭

77%
+5 −0
Can GitHub rewrite authorship of commits?

GitHub has a setting wherein they offer to "anonymize" your user email from, say, somebody@example.com to somebody@users.noreply.github.com. I presume this is to prevent you from getting spam from ...

1 answer  ·  posted 3mo ago by Michael‭  ·  edited 3mo ago by matthewsnyder‭

60%
+1 −0
Ghidra decompiler: c_str() used in phantom string?

I loaded a binary into Ghidra for analysis. The decompiler says undefined8 main(void) { basic_ostream *pbVar1; char *pcVar2; [--snip--] pbVar1 = std::operator<<(pbVar1,"PXZ ");...

1 answer  ·  posted 4mo ago by nteodosio‭  ·  edited 3mo ago by Alexei‭

77%
+5 −0
What is the purpose of having underscored names and then defining a non-underscored alias to it?

In a C implementation in <stdio.h> on Linux I saw something like: extern FILE *__stdinp; extern FILE *__stdoutp; extern FILE *__stderrp; And then: #define stdin __stdinp #define stdou...

1 answer  ·  posted 3mo ago by 90 98‭  ·  last activity 3mo ago by aghast‭

50%
+2 −2
What is the default port number of MariaDB?

What is the default port number of MariaDB database server? (Remembering defaults is surprisingly hard since usually you don't need to specify them..)

1 answer  ·  posted 3mo ago by Iizuki‭  ·  last activity 3mo ago by manassehkatz‭

60%
+4 −2
How to speed up MySQL query?

I have a website about vacation villa rentals. Around 800 properties are listed. When i start a search, i get properties with my first query which filters type, style, area, no. of rooms, capacity ...

2 answers  ·  posted 3mo ago by erenlerhakan‭  ·  last activity 3mo ago by ArtOfCode‭

66%
+2 −0
How to programmatically evaluate Excel data validations using .NET?

What I would like to do: Set a cell value. Check with a program if cell values conform to data validation rules. I could extract all the information needed to create a validation function, b...

1 answer  ·  posted 3mo ago by toraritte‭  ·  last activity 3mo ago by toraritte‭

66%
+2 −0
Which .NET project can programmatically validate a cell's value out of the box based on Excel data validation constraints?

Are any of the popular Excel .NET projects have a functionality similar to Apache POI's DataValidationEvaluator class?

1 answer  ·  posted 3mo ago by toraritte‭  ·  edited 3mo ago by toraritte‭

60%
+1 −0
Drop-down values in Excel cells are not specified in Data Validation rules and global search didn't find them in workbook, so where do they come from?

On top of values seemingly coming from nowhere in multiple columns, they also affect each other's behavior: In the GIF below, if the cells in the left column have no value selected, then there is n...

1 answer  ·  posted 3mo ago by toraritte‭  ·  edited 3mo ago by toraritte‭

78%
+9 −1
What is do { } while(0) in macros and should we use it?

Background I can see the need to use { } when implementing a function-like macro such as this one: #define HCF(code) fprintf(stderr, "halt and catch fire"); exit(code); Because if we use the f...

2 answers  ·  posted 3y ago by Lundin‭  ·  last activity 3mo ago by Karl Knechtel‭

83%
+8 −0
Git-ignoring files with special characters in their names, especially newlines

My actual motivation is to understand the semantics of the .gitignore file syntax in precise detail, for a program which is expected to emulate them as accurately as possible. However, while coming...

1 answer  ·  posted 3mo ago by Karl Knechtel‭  ·  last activity 3mo ago by Peter Taylor‭

66%
+2 −0
How to "materialize" Ionide function signature type hints as comments?

For example, given this function head, this is the hint that is generated: let updateCell workbook sheetIndex rowIndex columnIndex value = // XSSFWorkbook -> int -> int -> int -> stri...

0 answers  ·  posted 3mo ago by toraritte‭

66%
+2 −0
Method not found when emitting a custom signal, but the game seems to work when played.

In Godot 4.1.1 I moved some scenes and started getting parenting errors. I think I got that fixed, but I'm mentioning it in case it is important. I have an Area2d called House. house.gd has two c...

1 answer  ·  posted 3mo ago by TecBrat‭  ·  last activity 3mo ago by TecBrat‭

75%
+4 −0
How to run Gitlab CI jobs only in specific branches?

By default Gitlab CI jobs run on any commit. I would like to restrict some of them to run only on commits to specific branches. How to do this in .gitlab-ci.yml?

1 answer  ·  posted 4mo ago by Iizuki‭  ·  last activity 4mo ago by Iizuki‭

81%
+7 −0
How to revert main branch to an earlier commit in git?

How to move the main branch back to an earlier commit in git?

2 answers  ·  posted 5mo ago by Iizuki‭  ·  last activity 4mo ago by Michael‭

git
66%
+2 −0
How to automatically add package reference into project file after installing .NET package?

Just getting into F#, finally figured out how to add .NET packages to projects, but the way I managed to get it to work doesn't make sense. Once the package is installed (either with nuget or paket...

2 answers  ·  posted 4mo ago by toraritte‭  ·  last activity 4mo ago by toraritte‭

71%
+3 −0
Where is the `.fsproj` project file documented?

More specifically: Is there a dedicated docs page listing "properties" that are idiosyncratic to F# .fsproj project files? Why am I asking? Started learning F# a couple of days ago, but just now ...

1 answer  ·  posted 4mo ago by toraritte‭  ·  edited 4mo ago by toraritte‭

77%
+5 −0
When should I parenthesize macro arguments in C?

I've seen macros use parentheses to enclose its arguments. Most of these make sense, as in #define sum(a, b) ((a) + (b)) The outer prevents the following: #define sum_bad(a, b) (a) + (b) ...

2 answers  ·  posted 4mo ago by alx‭  ·  last activity 4mo ago by Lundin‭

75%
+4 −0
Is it possible to re-export types similar to JS?

I'm writing a library "MyLibrary". In there, I group code into sections that make sense. Let's say I have a folder "Reports" and a folder "Helpers". I would like to have my code separated while ...

1 answer  ·  posted 5mo ago by raphaelschmitz‭  ·  last activity 4mo ago by raphaelschmitz‭

c#
77%
+5 −0
How to create and manipulate (read/write) Excel (XLSX) documents with complex rules using general programming languages?

Our organization (blindness non-profit in California) is obligated to submit reports to grant organizations (e.g., Department of Rehabilitation) on a regular basis. Most of the time, this means exp...

1 answer  ·  posted 4mo ago by toraritte‭  ·  last activity 4mo ago by toraritte‭

66%
+2 −0
Is there a correct way to fetch data with a SwiftUI ViewModel?

Background + Example Code Let's say I have a SwiftUI ViewModel like so: class ViewModel: ObservableObject { @Published var strs: [String] = [] func fetchStrs() async { // T...

0 answers  ·  posted 4mo ago by MrDevel0per‭  ·  edited 4mo ago by MrDevel0per‭

75%
+4 −0
What are the benefits of starting a Git repo with an empty commit?

Found an article about starting a repo with an empty commit. Read the post a couple of times, but still don't understand the reasoning: 1. git log and other commands blow up with terrifying ...

2 answers  ·  posted 4mo ago by toraritte‭  ·  last activity 4mo ago by Michael‭

git
80%
+6 −0
How to compare a git stash to the current working tree?

In git you can put your current changes aside for a moment with git stash. This is really neat but what often ends up happening is that you forget what was in there, and what was the state of the b...

1 answer  ·  posted 4mo ago by Iizuki‭  ·  edited 4mo ago by Iizuki‭

66%
+2 −0
Winui 3 Combobox in datagrid not displaying data

I am migrating a WPF app to WinUI3. Things went well until I needed to put a combo box in the datagrid. That MS had removed the datagrid from the standard tools was overcome with Community Toolkit ...

0 answers  ·  posted 4mo ago by FrankLuke‭

66%
+2 −0
How can I get a value as a node:stream from the Nest.js cache-manager?

Question How can I read data from a NestJS Redis Cache as a stream? I'm using Nest.js and its @nestjs/cache-manager (using the Redis implementation), I need to read data I have stored in the cach...

0 answers  ·  posted 4mo ago by gdfelt‭  ·  edited 4mo ago by MrDevel0per‭

71%
+3 −0
How to declaratively enable RabbitMQ feature flags in Kubernetes

We use Kubernetes on a cloud (GKE, to be precise). We use RabbitMQ for messaging and we need to upgrade it from 3.10 to 3.12 . FWIW RabbitMQ has been added to our system using a chart from Bitnami...

0 answers  ·  posted 4mo ago by FractionalRadix‭

60%
+1 −0
How do I register the Chart.js Zoom plugin?

I am attempting to use the chartjs-zoom-plugin v2.0.1 with Chart.js v4.4.0. I have the plugin as the file chartjs-plugin-zoom-2.0.1.min.js, and I have imported it into my page using <script ty...

1 answer  ·  posted 5mo ago by CavanWright‭  ·  last activity 4mo ago by surajrao‭

33%
+0 −2
Axios error bad request [closed]

I'm trying to use this code with Axios: import "./feed.css"; import Post from "../post/Post"; import Share from "../share/Share"; import { useState, useEffect } from "react"; import axios from...

0 answers  ·  posted 4mo ago by AyeshSoul‭  ·  closed 4mo ago by Alexei‭

71%
+3 −0
Using an existing web server vs writing your own

When writing a dynamic web service, you broadly speaking have two paths: Use an existing web server (e.g. Apache, Nginx or Lighttpd) to handle the "raw" web requests and implement your own cod...

4 answers  ·  posted 4mo ago by Iizuki‭  ·  last activity 4mo ago by Basile Starynkevitch‭

50%
+1 −1
Angular Testing fails with Service.method is not a function

I'm trying to write a spec test for a (correctly working) Angular component, but it errors when calling a service method with: TypeError: _this.myService.getSomeData is not a function The service...

0 answers  ·  posted 4mo ago by mcalex‭

66%
+2 −0
Escape both reserved characters and curly braces in a URI in Spring Boot

I need to pass URI's that contain special characters, using Spring Boot. The characters include spaces, curly braces ({ and }), square brackets ([ and ]), and hash signs (#). The problem is that ...

1 answer  ·  posted 4mo ago by FractionalRadix‭  ·  last activity 4mo ago by FractionalRadix‭

35%
+4 −9
Find the name of the student with the top mark, display their name and mark

I have a CSV file like this: name,surname,score Moon,Walko,148 Jerald,Gryder,150 I need to find the highest score. My attempt: namespace test { class Program { string[...

2 answers  ·  posted 2y ago by InPut‭  ·  last activity 4mo ago by NetMage‭

71%
+3 −0
How to use docker hub with podman?

Unlike docker, Podman won't (understandably) use docker hub by default. You can use it explicitly like this: (just using a random example here, it's an OpenAPI linter) podman pull docker.io/dshanl...

1 answer  ·  posted 4mo ago by Iizuki‭  ·  last activity 4mo ago by Iizuki‭

66%
+2 −0
Get list of all variables from Jinja template

Suppose you have a jinja template like this: I am going to {{ foo }} to get some {{ bar }}. I hope I can find: {% for i in baz %} - {{i}} {% endfor %} This template will require you to pass ...

0 answers  ·  posted 5mo ago by matthewsnyder‭  ·  edited 5mo ago by Karl Knechtel‭

50%
+1 −1
Running a bash command with a Key Combination in Gnome [closed]

Is there a way in Ubuntu to run a given bash command for a given Key combination in Gnome (42.9)? I run an Ubuntu in Hyper-V and after a while the normal Keyboard layout change doesn't work (maybe...

0 answers  ·  posted 5mo ago by Arpad Horvath‭  ·  closed 5mo ago by Alexei‭

81%
+7 −0
Git add/stage only part of a file's changes

Say I've made a bunch of changes to a file and would like to split those changes into two or more commits. Normal git add however stages the whole file in one go. So how to add only some of the ch...

1 answer  ·  posted 5mo ago by Iizuki‭  ·  last activity 5mo ago by Iizuki‭

git
88%
+14 −0
Is strcpy dangerous and what should be used instead?

I heard rumours that the strcpy function is dangerous and shouldn't be used. Supposedly it can be exploited to create buffer overflows somehow. And indeed when I compile my C code in the admittedl...

2 answers  ·  posted 3y ago by Lundin‭  ·  last activity 5mo ago by alx‭

75%
+4 −0
How do I share a type between a client and server, but make a specific field optional for one and required for the other?

Let's say I have a client/server application with a data structure on the server side: type User = { name: string; superSecretGovernmentIdNumber: string; }; These fields are both non-nul...

1 answer  ·  posted 5mo ago by Emily‭  ·  edited 5mo ago by Emily‭

50%
+1 −1
What software architecture are available for developing an application with multiple business domains that only share some common aspects?

NOTE The meaning of the word "program" below is (PROGRAM) A federal or state initiative that offers grants for non-profits so that they can provide service at low cost or free of charge. a...

2 answers  ·  posted 5mo ago by toraritte‭  ·  edited 5mo ago by toraritte‭

71%
+3 −0
How to provide meaningful names for emails in Maildir?

I am writing some scripts that operate on emails in Maildir format. A lot of things are easy in this format, but the filenames are absolutely incomprehensible. For example, one script moves mails ...

1 answer  ·  posted 5mo ago by matthewsnyder‭  ·  edited 5mo ago by Alexei‭

25%
+0 −4
Configure port in Gbee.ai [closed]

How do one configure a port in GBee.ai framework.

0 answers  ·  posted 5mo ago by nishnatadat‭  ·  closed 5mo ago by Alexei‭

40%
+0 −1
Determine which script is slowing the page down in Firefox [closed]

A page is very slow and laggy in Firefox. I am certain it's one of the many Javascripts slowing it down. Out of curiosity, I'd like to figure out which script is creating the heaviest load. Note t...

0 answers  ·  posted 5mo ago by matthewsnyder‭  ·  closed 5mo ago by Alexei‭

50%
+0 −0
How do I get the min/max axis values in Chart.js?

I'd like to get the minimum and maximum values of the axes on a Chart.js 4.4.0 plot. When the plot is created, these values must be calculated somewhere. However, reading through the Chart.js doc...

1 answer  ·  posted 5mo ago by CavanWright‭  ·  last activity 5mo ago by Ullallulloo‭

75%
+4 −0
Set transform of SVG element

I'm trying to set the transform attribute of a group within an SVG. Specifically, I'd like to set translate's value to 0 0. I tried using the set element for this but that didn't have an observab...

1 answer  ·  posted 5mo ago by Matthias Braun‭  ·  edited 5mo ago by Matthias Braun‭

svg
66%
+4 −1
How to implement a relationship between 2 tables where the type of participation is mandatory and RESTRICT rule for both?

Found the example below in a book teaching logical database design, but I'm stuck on how one would implement this in PostreSQL: The diagram reflects the following business rule: An instructor...

1 answer  ·  posted 5mo ago by toraritte‭  ·  last activity 5mo ago by Derek Elkins‭

66%
+2 −0
Redshift int casting from varchar - how to force early evaluation order?

Context: I have a varchar column in a segment event table that contains version numbers. Most of these are formatted nicely as X.Y.Z (major.minor.patch) where X, Y, and Z are integers. However, the...

0 answers  ·  posted 5mo ago by Sigma‭

60%
+1 −0
How to validate Ansible role dictionary argument's "additionalProperties"

In JSON Schema one can use the additionalProperties key to validate properties whose names are not know. You can still impose restrictions on their type. How to do this in an Ansible role argument...

1 answer  ·  posted 5mo ago by Iizuki‭  ·  edited 5mo ago by Iizuki‭

60%
+1 −0
How to use Ansible extract filter in map with an external dictionary

Ansible's extract filter is supposedly made for use in map, but at the time of writing the documentation doesn't actually show how to use it together with the map filter. The following outputs VAR...

1 answer  ·  posted 5mo ago by Iizuki‭  ·  edited 5mo ago by Iizuki‭