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Which characters are valid/invalid in a JSON key name?
... from the horse's mouth, though, at json.org. It takes about one minute to read the entire spec end-to-end.
– Marcelo Cantos
Dec 30 '11 at 4:21
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Why is Scala's immutable Set not covariant in its type?
...bose and use "set.contains" rather than "set" (and arguably "set.contains" reads better in many cases anyway).
– Matt R
Mar 3 '11 at 20:32
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What is the fundamental difference between WebSockets and pure TCP?
I've read about WebSockets and I wonder why browser couldn't simply open trivial TCP connection and communicate with server like any other desktop application. And why this communication is possible via websockets?
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How to find largest objects in a SQL Server database?
... queries manually for a while now and I cannot believe these reports are already there!)
– Jennifer Zouak
Apr 1 '15 at 16:41
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mongodb count num of distinct values per field/key
...r distinct has its own charms but this is just gold :) -- anyhow I have to read more about aggregates to achieve desired set of results to filter data
– Talha
May 8 '18 at 14:20
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LINQ Select Distinct with Anonymous Types
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Have a read through K. Scott Allen's excellent post here:
And Equality for All ... Anonymous Types
The short answer (and I quote):
Turns out the C# compiler overrides
Equals and GetHashCode for anonymous
types. The impleme...
How do I run git log to see changes only for a specific branch?
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shouldn't not read? git log master..<your branch> --oneline --no-merges
– Alex Nolasco
Jun 4 '14 at 21:31
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How to remove unreferenced blobs from my git repo
...might want to keep: Stashes; Old history not in any current branches; etc. Read the documentation to be sure this is what you want.
To expire the reflog, and then prune all objects not in branches:
git reflog expire --expire-unreachable=now --all
git gc --prune=now
git reflog expire --expire-unreac...
How to Store Historical Data
...e a tool that generates scripts to create audit log tables and triggers by reading metadata from the system data dictionary. This type of tool can be used to retrofit audit logging onto most systems. You can also use this subsystem for changed data capture if you want to implement a data warehouse...
Is a memory leak created if a MemoryStream in .NET is not closed?
...by MemoryStream any faster. It will stop your stream from being viable for Read/Write calls after the call, which may or may not be useful to you.
If you're absolutely sure that you never want to move from a MemoryStream to another kind of stream, it's not going to do you any harm to not call Dispo...