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Test whether a list contains a specific value in Clojure
... this case... it slightly surprises me that there isn't one already in the core language.
– mikera
Jul 14 '10 at 19:06
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Is it better to call ToList() or ToArray() in LINQ queries?
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It's 2020 outside and everyone is using .NET Core 3.1 so I decided to run some benchmarks with Benchmark.NET.
TL;DR: ToArray() is better performance-wise and does a better job conveying intent if you're not planning to mutate the collection.
[MemoryDiagnoser]
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Difference between a “coroutine” and a “thread”?
...may be executing at any given time. (Traditionally, on single-CPU, single-core machines, that concurrency was simulated with some help from the OS -- nowadays, since so many machines are multi-CPU and/or multi-core, threads will de facto be executing simultaneously, not just "conceptually").
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How to run a single RSpec test?
...de
end
RSpec documentation:
https://www.rubydoc.info/github/rspec/rspec-core/RSpec/Core/Configuration#filter_run_when_matching-instance_method
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Which version of Perl should I use on Windows? [closed]
...s that my modules sometimes fail to install because I need an upgrade to a core module, but they won't allow that. Thus, everybody who doesn't use Windows can use my code, but they can't do that with ActiveState's Perl.
ActiveState also has a very dodgy build system which often fails to report exa...
How to remove a single, specific object from a ConcurrentBag?
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FYI, SynchronizedCollection is not available in .NET Core. As of the date of this comment, the System.Collections.Concurrent types are the way current way to go for .NET Core based implementations.
– Matthew Snyder
Jun 13 '19 at 14:58
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EF Migrations: Rollback last applied migration?
...tation or i am missing something. Tried via entityframeworktutorial.net/efcore/… any suggestions?
– Sijan Shrestha
May 23 at 17:52
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What is App.config in C#.NET? How to use it?
...ent time. One exception to this is when a web.config is transformed.
.NET Core
New configuration options were introduced with .NET Core. The way that *.config files works does not appear to have changed, but developers are free to choose new, more flexible configuration paradigms.
Configuration ...
How to restore the permissions of files and directories within git if they have been modified?
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Try git config core.fileMode false
From the git config man page:
core.fileMode
If false, the executable bit differences between the index and the working copy are ignored; useful on broken filesystems like FAT. See git-update-inde...
Value cannot be null. Parameter name: source
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I just got this exact error in .Net Core 2.2 Entity Framework because I didn't have the set; in my DbContext like so:
public DbSet<Account> Account { get; }
changed to:
public DbSet<Account> Account { get; set;}
However, it didn't show the exc...