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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.

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Quick hints: tag:tagname, user:xxx, "exact phrase", post_type:xxx, created:<N{d,w,mo,y}, score:>=0.5

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+1 −5
Q&A Haskell revision question. [closed]

The answer for this question is that there is something wrong with the expression of the first guard of this function below: congratulations :: [(String, Int)] -> [String] congratulations [] =...

0 answers  ·  posted 2y ago by Anonymous‭  ·  closed 2y ago by Alexei‭

Question haskell
30%
+1 −5
Q&A How can software track [1] how many subscribers to subreddits, [2] if subreddit is private, [3] if submissions are restricted?

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...

1 answer  ·  posted 4y ago by TextKit‭  ·  last activity 4y ago by r~~‭

Question reddit
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+1 −5
Q&A How this recursive treewalker works?

Credit for User:Meriton for developing the following code (first published here). function replaceIn(e) { if (e.nodeType == Node.TEXT_NODE) { e.nodeValue = e.nodeValue.replaceAll("a", "");...

3 answers  ·  posted 3y ago by deleted user  ·  last activity 3mo ago by hkotsubo‭

Question javascript recursion tree tree-traversal
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+1 −5
Q&A Explaining the result of an arithmetic expression in JavaScript

I misunderstand why the following code outputs -1 in console. x = 42; x = (x == 42) * -1 + (x != 42) * x; -1 Due to Type Coercion, the comparison of x to 42 yields true and is thus transl...

2 answers  ·  posted 3y ago by deleted user  ·  edited 3y ago by Alexei‭

Question javascript operator-precedence arithmetic-expressions
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+0 −3
Q&A How to make this treewalker code having a regular for loop or a forEach() method?

Credit for User:Meriton for developing the following code (first published here). function replaceIn(e) { if (e.nodeType == Node.TEXT_NODE) { e.nodeValue = e.nodeValue.replaceAll("a", "");...

1 answer  ·  posted 3y ago by deleted user  ·  edited 3y ago by Alexei‭

Question javascript for-of-loop
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+0 −3
Q&A How to implement "Loss leader" marketing pattern in ecommerce websites? [closed]

Loss leader is a marketing pattern implemented in stores: A customer enters a store and while heading to some most desired expensive products far from entrance, that customer picks some products s...

0 answers  ·  posted 3y ago by deleted user  ·  closed 3y ago by Alexei‭

Question e-commerce
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+0 −3
Q&A Why would a form value inserted with value property won't be effective? [closed]

In a website I didn't build, I want to put a value in an HTML input field element with JavaScript and to also use it as-putted. I can put it with the browser console this way: document.querySelec...

1 answer  ·  posted 3y ago by deleted user  ·  closed 3y ago by Alexei‭

Question javascript html-input queryselector
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+0 −3
Q&A Data structure implementation with Linked lists.

Could someone explain this part of the coding for data structures & linked list? I actually got this code from a textbook but no matter how I read the textbook, I still don't get the concept &a...

1 answer  ·  posted 3y ago by hamburgersarecool‭  ·  last activity 3y ago by Alexei‭

Question c data-structures linked-list struct
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Q&A What makes a software module an "authentication" module?

As I don't have any significant experience with internationally-standard information security literature, I would like to ask here if some international information security organization took the i...

2 answers  ·  posted 4y ago by deleted user  ·  last activity 4y ago by nelson777‭

Question security authentication
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+0 −3
Q&A Storing input from different frontend webpages of a multi page contact form

I consider to create a multi page contact form in which there is one backend page but about 5 front-end pages (stage 1-5). Pages 1-4 are input pages and page 5 is for a submit button and a success ...

1 answer  ·  posted 4y ago by deleted user  ·  last activity 4y ago by elgonzo‭

Question javascript persistence
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Q&A How to plot in C++?

I was trying to plot using following lines in C++. #include "koolplot.h" int main() { plotdata x(-6.0, 6.0); plotdata y = sin(x) + x/5; plot(x, y); return 0; } When I was...

0 answers  ·  posted 3y ago by Anonymous‭

Question c++ plot
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+0 −3
Q&A How would I go about chunk loading around player in a 3 dimensional cartesian coordinate space [closed]

So I am in the process of creating a voxel sandbox survival game (minecraft clone) in javaFX. I am at a point where I need to come up with a way to load the chunks in my surrounding given a render ...

1 answer  ·  posted 2y ago by cuzzo‭  ·  closed 2y ago by cuzzo‭

Question java javafx
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+0 −3
Q&A Built-in way to compute coefficient of variation in pandas

Background The coefficient of variation is: defined as the ratio of the standard deviation to the mean Question Is there a built-in function for this? Tried I know I can do df.std() / df...

1 answer  ·  posted 2y ago by mcp‭  ·  last activity 2y ago by cuzzo‭

Question python pandas
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Q&A Need help in migrating a Python2 custom middleware to current Python3 version

class ExtendUserSession(MiddlewareMixin): """ Extend authenticated user's sessions so they don't have to log back in following 15 minutes (set by Django's default `SESSION_COOKIE_A...

0 answers  ·  posted 3y ago by roronoa_zoroDR‭  ·  last activity 3y ago by Monica Cellio‭

Question python django-drf
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+0 −3
Q&A Why does the types returned by 'valueOf()' are incompatible with the type `Partial<Temporal.PlainDate>`?

This code: type A = Partial<Temporal.PlainDate>; const a: A = { day: 1, month: 1, year: 2025 } yields this error: Type '{ day: number; month: number; year: number; }' is not assignable ...

0 answers  ·  posted 1mo ago by Ooker‭

Question typescript deno temporal
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Q&A libicuin75.dll was not found

At this time I am trying to manually install doxygen into msys64 but the computer I am using does not have access to the internet. When I try to start doxywizard.exe, I am receiving this error. ...

2 answers  ·  posted 10mo ago by john1726‭  ·  last activity 9mo ago by Nisha Jadon‭

Question doxygen msys
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+1 −6
Q&A How can I combine every (number) of pictures and create multiple panorama images, just once? [closed]

Pre-suppose I have pictures numbered 1 to 400. I want to simultaneously combine every 4 pics in 1, so that I end up with 100 collages. Picture 1-4, 5-8, 9-12 ... will be combined. Indubitably it's...

0 answers  ·  posted 4y ago by TextKit‭  ·  closed 4y ago by Alexei‭

Question algorithms
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Meta Closing self-answered question due to not being clear enough

Closing questions should be a last resort. Closed question are wasted opportunities to get more interesting and useful content, and potentially wasted opportunities to gain a new contributing user....

posted 10mo ago by matthewsnyder‭

Answer
25%
+0 −4
Q&A Configure port in Gbee.ai [closed]

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

0 answers  ·  posted 1y ago by nishnatadat‭  ·  closed 1y ago by Alexei‭

Question Gbee.ai
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+0 −4
Q&A Having problems with my php script [closed]

The exam checking for the backend is working perfectly well but the front end keeps saying an error occurred. Am like ok then tried the demo version replaced the javascript and everything i can rep...

0 answers  ·  posted 1y ago by zick853‭  ·  closed 1y ago by Mithical‭

Question php mysql
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Q&A Git deployment vs SFTP deployment [closed]

I personally use git for deploying my hobby projects into cloud like Heroku. I came across the concept of sftp for uploading files. Now please differentiate these two deployments like when to use w...

0 answers  ·  posted 3y ago by aditya98‭  ·  closed 3y ago by Alexei‭

Question git sftp
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+0 −4
Q&A Why storing variables inside a variable?

In the past I have read about the fact that some programmers use a variable to hold two or more variables (instead holding a mere value or an array). There might also be cases when programmers use...

1 answer  ·  posted 4y ago by deleted user  ·  edited 4y ago by Derek Elkins‭

Question design-patterns constant variable
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Q&A What does the greater than 0 indicate in the case of this statement 'if (compare(A[j], A[j+1]) > 0)' ? Thank you.

Question: There is a list of integers in an array (3,2,1,5,6,4), sort this list in both ASCENDING & DESCENDING order. Create a sort function. #include<stdio.h> #include<stdlib.h> ...

1 answer  ·  posted 3y ago by dumplings‭  ·  last activity 3y ago by Lundin‭

Question c pointers function-pointers
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Q&A What is the difference between a decoupled, Headless and RESTful content management system?

By means of content management system architecture, Is the implementation of decoupling architecture (backend and frontend separation), headless architecture and Representational State Transfer (R...

1 answer  ·  posted 3y ago by deleted user  ·  last activity 3y ago by Canina‭

Question terminology content-management-system
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Q&A Ajax pattern to send email with a backend file to store an email address

I use the following backend (PHP) pattern to send email. I consider to start sending email by Ajax but I would still need to store my email address in some backend file (say, a PHP file) so it won...

0 answers  ·  posted 3y ago by deleted user  ·  edited 3y ago by deleted user

Question ajax backend