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Does .NET have a way to check if List a contains all items in List b?
...ren't in a - and then inverts the result.
Note that it would be slightly more conventional to make the method generic rather than the class, and there's no reason to require List<T> instead of IEnumerable<T> - so this would probably be preferred:
public static class LinqExtras // Or wh...
How to return an NSMutableArray from an NSSet
...SMutableArray *array = [NSMutableArray arrayWithArray:[set allObjects]];
Or, alternatively, if you want to handle the object ownership:
NSMutableArray *array = [[set allObjects] mutableCopy];
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MySql server startup error 'The server quit without updating PID file '
On Snow Leopard, starting MySQL gives the following error:
50 Answers
50
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Get all keys of an NSDictionary as an NSArray
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the order of keys returned by allKeys is undefined... so allKeys.firstObject or allKeys][0] is dangerous either way
– Brad Thomas
Feb 24 '17 at 19:39
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Is it possible to get the non-enumerable inherited property names of an object?
... do{
var props = Object.getOwnPropertyNames(curr)
props.forEach(function(prop){
if (allProps.indexOf(prop) === -1)
allProps.push(prop)
})
}while(curr = Object.getPrototypeOf(curr))
return allProps
}
I tested that on Safari 5.1 and got
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Remove useless zero digits from decimals in PHP
...66.7
Internally, this is equivalent to casting to float with (float)$num or floatval($num) but I find it simpler.
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Is it safe to ignore the possibility of SHA collisions in practice?
...a billion unique images, one megabyte each.
We calculate the SHA-256 hash for the contents of each file.
The possibility of collision depends on:
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How to replace local branch with remote branch entirely in Git?
...ent).
Assuming that master is the local branch you're replacing, and that "origin/master" is the remote branch you want to reset to:
git reset --hard origin/master
This updates your local HEAD branch to be the same revision as origin/master, and --hard will sync this change into the index and wo...
File extension for PowerShell 3
All of us probably know .bat for Batch files.
1 Answer
1
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Get file name and extension in Ruby
I'm working on a program to download a video from YouTube, convert it to MP3 and create a directory structure for the files.
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