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Javascript: negative lookbehind equivalent?
...€8.47".match(/(?<!\$)\d+(?:\.\d*)/) // Matches "8.47"
);
Platform support:
✔️ V8
✔️ Google Chrome 62.0
✔️ Microsoft Edge 79.0
✔️ Node.js 6.0 behind a flag and 9.0 without a flag
✔️ Deno (all versions)
✔️ SpiderMonkey
✔️ Mozilla Firefox 78.0
????️ Ja...
ArrayList initialization equivalent to array initialization [duplicate]
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It's worth mentioning that unless you strictly need an ArrayList it's probably better to just use the List that's returned by Arrays#asList.
– maerics
May 3 '10 at 20:51
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What is getattr() exactly and how do I use it?
...n advance which attribute you want (it comes from a string). Very useful for meta-programming.
you want to provide a default value. object.y will raise an AttributeError if there's no y. But getattr(object, 'y', 5) will return 5.
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Shell command to tar directory excluding certain files/folders
Is there a simple shell command/script that supports excluding certain files/folders from being archived?
27 Answers
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Batch file include external file for variables
...grey text on black background DOS. Nevertheless, the first variant should work in DOS as well.
Executable configuration
The easiest way to do this is to just put the variables in a batch file themselves, each with its own set statement:
set var1=value1
set var2=value2
...
and in your main batch:
ca...
How to split a column into two columns?
...@Nisba: If any cell can't be split (e.g. string doesn't contain any space for this case) it will still work but one part of the split will be empty. Other situations will happen in case you have mixed types in the column with at least one cell containing any number type. Then the split method return...
Find unused code [closed]
I have to refactor a large C# application, and I found a lot of functions that are never used. How can I check for unused code, so I can remove all the unused functions?
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ASP.NET MVC RequireHttps in Production Only
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This won't help if you run Release builds on your development workstation, but conditional compilation could do the job...
#if !DEBUG
[RequireHttps] //apply to all actions in controller
#endif
public class SomeController
{
//... or ...
#if !DEBUG
[RequireHttps] //apply to this ...
How to ssh to vagrant without actually running “vagrant ssh”?
...ass on arguments properly. This is basically what it does (there might be more, but it works fine this way)
#!/bin/sh
PORT=$(vagrant ssh-config | grep Port | grep -o '[0-9]\+')
ssh -q \
-o UserKnownHostsFile=/dev/null \
-o StrictHostKeyChecking=no \
-i ~/.vagrant.d/insecure_private_key ...
Javascript equivalent of Python's zip function
... so the following function definition will act like python, but see below for disclaimer... this will not be its own inverse so zip(zip(x)) will not equal x; though as Matt Kramer points out zip(...zip(...x))==x (like in regular python zip(*zip(*x))==x))
Alternative definition equiv. to Python{zip}...