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Is if(items != null) superfluous before foreach(T item in items)?
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@CodeInChaos: Ah, I see your point now. When the compiler can detect that the "foreach" is iterating over a List<T> or an array then it can optimize the foreach to use value-type enumerators or actually generate a "for" loop. When forced to enumerate ove...
How to search and replace text in a file?
...k Aidley's answer, it has been corrected since this answer, so this one is now redundant (and inferior due to losing the neater with blocks).
– Chris
Apr 26 '17 at 20:08
add a...
What is the best way to clone/deep copy a .NET generic Dictionary?
...ill give you a deep copy of the Dictionary and all the items inside of it. Now you can create a deep copy of any object that is marked as [Serializable] without writing any special code.
Here are two methods that will use Binary Serialization. If you use these methods you simply call
object deepc...
How to remove a single, specific object from a ConcurrentBag?
...d SynchronizedCollection is available in the Collections.Generic namespace now.
– Lucas Leblanc
Sep 25 '19 at 18:28
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How can I remove specific rules from iptables?
..., but this one won't work in a scripted setting when the line number is unknown. So the other solution is more general, and therefore more correct, IMO.
– Jeroen
Nov 17 '13 at 5:14
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An error occurred while signing: SignTool.exe not found
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Now try to publish the ClickOnce application. If you still find the same issue, please check if you installed the Microsoft .NET Framework 4.5 Developer Preview on the system. The Microsoft .NET Framework 4.5 Developer Previe...
How to get Vim to highlight non-ascii characters?
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For other (from now on less unlucky) folks ending up here via a search engine and can't accomplish highlighting of non-ASCII characters, try this (put this into your .vimrc):
highlight nonascii guibg=Red ctermbg=1 term=standout
au BufReadPo...
convert ArrayList to JSONArray
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I know its already answered, but theres a better solution here use this code :
for ( Field f : context.getFields() ) {
if ( f.getType() == String.class ) || ( f.getType() == String.class ) ) {
//DO String To JSO...
Equivalent of .try() for a hash to avoid “undefined method” errors on nil? [duplicate]
...l
It is also including a similar sort of way: Array#dig and Hash#dig. So now this
city = params.fetch(:[], :country).try(:[], :state).try(:[], :city)
can be rewritten to
city = params.dig(:country, :state, :city)
Again, #dig is not replicating #try's behaviour. So be careful with returning v...
How to configure git bash command line completion?
...s not compatible with the version of git you've installed.
In fact, right now that will break because the master branch's git-completion.bash has new features that requires git v2.18, which none of the package managers and installers have updated to yet. You'll get an error unknown option: --list-c...