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General Q&A about programming, scripting, software design & architecture, process, tools, testing, and more.
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Is there a way to easily insert today's date when editing a file in VS Code?
Amazon product URLs are often very long, but on experimentation it is revealed that the following pattern is sufficient: https://www.amazon.com/{dp|gp}/$ID ID is a 10-char string, which I'm gue...
When reading about various operators used by programming languages, the term "short circuit behavior" is often used. For example in this C code: int a = 0; a && b++ Someone explained t...
The C language has gone through many iterations and the latest one not yet released is informally called "C23", supposedly because they hoped to release it in 2023. The latest draft version N3096 i...
I want my CLI Python program to schedule a task, and then exit. After some times has passed (say 10 minutes) the task should execute. The task can be a Python method or a shell command, whatever i...
Consider the following arbitrarily-nested JSON as input to a jq filter: echo '[{"foo": [1, 2]}, {"bar": [{"baz": ["foo", "baz"]}]}]' | jq '.' My goal is to join leaf arrays into strings: [{"fo...
I have a few different projects that rely on open source technology that I wish to make modifications to (say, to add key features for business or personal use) that will vary between upstreamable ...
I'm currently writing an input and output handling library for the D language, and I'm not getting any kind of input language change messages when the language is being toggled with hotkeys, and on...
Working with dbt version 2 I'm trying to set up source checks but I'm running into an issue where the column names I'm setting tests for have dashes (e.g. my_table.some-field-with-dash). I current...
Is there a Python serialization format that has capabilities similar to Pickle, but is text based? The problem I always have with pickle is that it's binary, so I can't manually view or edit the d...
If I run ls() in R, it shows the variables (including functions) in my workspace. But there are other variables visible too, e.g. functions from packages like ls itself. And if I write a function...
TL;DR Is (a and b) equivalent to tf.logical_and(a, b) in terms of optimization and performance? (a and b are tensorflow tensors) Details I use Python with Tensorflow. My priorities are Make t...
What is the best way to convert Dos paths to Posix paths in Powershell? eg given: C:\Program Files\PowerShell\Modules\ I want something like: /Program\ Files/PowerShell/Modules/ Is the only so...
Temporary notice: this is part of an ongoing project of transferring and splitting my canonical from Stack Overflow on common errors in Google Apps Script. As soon as the Q&As are finalized, ...
When I run code . in a directory, Visual Studio Code opens two windows. The first is empty, the second shows directory I was in as expected. I checked ~/.config/VSCode/Workspaces and there is only...
I need to do a lot of calculations involving sets. There are relatively few values in the "universe" of candidates that could appear in any of the sets, but potentially very many such sets (they mi...
From reading about the Crossfilter data manipulation library for JavaScript, I take it that "groups" are an important concept in its operation. However, the Crossfilter documentation does not ever...
I am working on adding uncertainty to some of my dynamics within a larger Monte Carlo simulation. As a way to perform multiple operations on each value, I decided to make and use a new function to ...
I've figured out that code --new-window /foo/bar/baz.txt will open baz.txt in a new window. But when I do this, it says "no folder opened" in the file explorer pane. That makes it hard to work with...
I know that I can display a single string in the terminal window like print("example") (or similarly with a string in a variable), and I know how to open text files and write to them. I also know ...
I have a function that loads JSON data and is declared to return a dictionary with string keys and values of any type (Dict[str, Any]). However, mypy is raising an error stating that I am returning...
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 ...
How to delete a local git branch which hasn't been pushed to anywhere, and only exists locally?
I am all new with using Redux Toolkit, I followed the official documentation to setup the store: // store.ts import { configureStore, ThunkAction, Action, combineReducers } from '@reduxjs/toolkit...
I have a query summarizing some transaction data that I'd like to summarize by day of week. For my use case, I need to return weekdays formatted according to ISO 8601, so Monday must be the first d...
As this is the first question about Google Apps Script, here is a very brief description: it is a platform that helps people easily get programmatic access to Google apps data like Gmail messages, ...
I have the following xarray Dataset: d: <xarray.Dataset> Dimensions: (x: 79, y: 63, t: 1) Coordinates: * x (x) float64 0.9412 1.882 2.824 3.765 ... 71.53 72.47 73.41 74.35 * ...
When I set up my object mappings with SQLalchemy, everything works well enough. It even creates the tables for me if they don't exist. However, if I decide to add/remove columns (aka fields) from ...
When developing a rust program you build and run using cargo run. However you cannot just append arguments to that as they will be caught (and likely rejected) by cargo itself. So how to pass argum...
Functions in C have external linkage by default. In other words, the storage class specifier extern is applied to functions by default, with the effect that they are visible to all translation unit...
In Python, multiprocessing is easy to do if you follow a "list projection" paradigm. Say you want to take a list of inputs X and apply some function f to every x_i, such that y_i = f(x_i) and the y...
Looping in Ansible usually produces a neat output of one line per iteration (per host): ... ok: [Arch] => (item=something) ok: [Arch] => (item=something_else) ok: [Arch] => (item=yet_a...
I'm looking at the behaviour of Chrome and my test framework and trying to understand what the correct behaviour should be before raising an issue/ticket on one or the other (or revisiting how my t...
I installed Node.js using NVS to manage my node installations. This works great, except that I haven't been able to figure out how to debug using VS Code. When trying to launch, I receive this err...
I like using NATURAL JOIN in Snowflake, because I find it more elegant than explicit join clauses. However, it appears that the natural join behaves similar to an inner join, in that null values o...
I have text (xml actually) files. Some files contain 'foo', some contain 'bar', some contain neither and some contain both. It's the both I'm interested in. How do I do an AND search on words in...
Why does git merge take the source branch rather than the destination branch as a parameter? The most common merge case by far for me is "Okay, this branch looks good, let's merge it into branch X...
Hi, I'm trying to use the JSON Generator to create data with nested repeating values. I want to create 100 objects with an ID, Name, and Code. The Id is incremented from 0 to 99, but the Code (pr...
Is there a way to add support for "move symbol" in Python code for VS Codium? PyCharm can do this, but I am looking for a VSC solution. PyLance can do this, but PyLance itself is closed source, a...
I'd like to organize my Matlab packages into folders. However, if I try to lay out my code like this +MyPackage |---foo.m |---SubDir |---bar.m then I'm unable to reach bar. F...
When I have tried to read technical explanations of the syntax rules for programming languages, and when I am trying to decipher error messages, I often encounter the terms expression and statement...
Background Many Python programs now recommend installing with pipx, and there is a sense that you shouldn't install with pip anymore, you should use tools like pipx. Main Question However, what ...
Temporary notice: this is part of an ongoing project of transferring and splitting my canonical from Stack Overflow on common errors in Google Apps Script. As soon as the Q&As are finalized, ...
I am currently working with LWJGL and the obstacle I face right now on my project is rendering textures to a cube, e.x a set of 8 vertices with position, color, and UV information. For now, I am st...
I have a large and complex PostgreSQL SELECT query that I would like to make faster. EXPLAIN suggests it should run quickly, with the worst parts being scans of a few thousand rows. When run, it do...
How to make Husky run git hook? I have a working git hook, prepare-commit-message, but the moment Husky was installed, the hook stopped working. Not finding much luck, I then tried to make it a "H...
I have a Python program like this: done = False while u and not done: i = u.pop() print(f"Processing {i}") do_big_task(i) finish_up() Since this takes a long time, the user m...
According to the standard (C17 draft, 7.22.3.2) The function calloc void *calloc(size_t nmemb, size_t size); "allocates space for an array of nmemb objects, each of whose size is size [and] i...
The Code using Microsoft.EntityFrameworkCore; public class BloggingContext : DbContext { public DbSet<Blog> Blogs { get; set; } public DbSet<Post> Posts { get; set; } ...
Mathematically, the purpose of a function is to return an output. However, in a programming context functions often have side effects. It is even common to call functions for the side effects alone...
