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C# 4.0 optional out/ref arguments
...I: Included on the new features for C# 7.0 enumerated here, "discards" is now allowed as out parameters in the form of a _, to let you ignore out parameters you don’t care about:
p.GetCoordinates(out var x, out _); // I only care about x
P.S. if you're also confused with the part "out var x", r...
ETag vs Header Expires
...ong and weak" caching behavior? I couldn't find one, and my client browser now prioritize last-modified over expires actually, which I don't understand why.
– GMsoF
Aug 20 '15 at 2:21
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How do I ZIP a file in C#, using no 3rd-party APIs?
...using
any third party libraries?
If using the 4.5+ Framework, there is now the ZipArchive and ZipFile classes.
using (ZipArchive zip = ZipFile.Open("test.zip", ZipArchiveMode.Create))
{
zip.CreateEntryFromFile(@"c:\something.txt", "data/path/something.txt");
}
You need to add references t...
What is the fastest or most elegant way to compute a set difference using Javascript arrays?
...
if don't know if this is most effective, but perhaps the shortest
A = [1, 2, 3, 4];
B = [1, 3, 4, 7];
diff = A.filter(function(x) { return B.indexOf(x) < 0 })
console.log(diff);
Updated to ES6:
A = [1, 2, 3, 4];
B = [1, 3, 4, ...
.NET HashTable Vs Dictionary - Can the Dictionary be as fast?
...nsure you're getting the right value on lookups, ie how does the function know which element to return? In msdn.microsoft.com/en-us/library/ms379571%28VS.80%29.aspx it says,"Rather than reprobing in the event of a collision, as is done with the Hashtable class, the Dictionary simply chains any coll...
the source file is different from when the module was built
... and close/exit it. You may have more than one. Can you debug your changes now?
Are you running the debug version but have only built the release version (or vice versa)?
Did the compile actually succeed? I know I've clicked through the "there were errors, do you want to continue anyway?" message ...
Install a Python package into a different directory using pip?
I know the obvious answer is to use virtualenv and virtualenvwrapper, but for various reasons I can't/don't want to do that.
...
Regular Expression For Duplicate Words
...wrong stuff. Intended to copy the one from my example actually. anyway, it now works! so all good! Thanks!
– Niket Pathak
Dec 7 '18 at 9:45
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How to cat a file containing code?
...@MatthewHoggan : Yep, you'r right! Thanks for catching that. I'm fixing it now.
– shellter
Nov 14 '15 at 1:11
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What is your single most favorite command-line trick using Bash? [closed]
We all know how to use <ctrl>-R to reverse search through history, but did you know you can use <ctrl>-S to forward search if you set stty stop "" ? Also, have you ever tried running bind -p to see all of your keyboard shortcuts listed? There are over 455 on Mac OS X by default. ...