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Is HttpClient safe to use concurrently?

In all the examples I can find of usages of HttpClient , it is used for one off calls. But what if I have a persistent client situation, where several requests can be made concurrently? Basically, is it safe to call client.PostAsync on 2 threads at once against the same instance of HttpClient . ...
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Calculate a Running Total in SQL Server

Imagine the following table (called TestTable ): 15 Answers 15 ...
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Create a string with n characters

...o the string. */ public String spaces( int spaces ) { return CharBuffer.allocate( spaces ).toString().replace( '\0', ' ' ); } Invoke using: System.out.printf( "[%s]%n", spaces( 10 ) ); share | ...
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How to style the option of an html “select” element?

...replacement plug-ins/libraries that look like a <select> but are actually composed of regular HTML elements that CAN be styled. share | improve this answer | follow ...
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CSS media queries: max-width OR max-height

...iting. It's been a good chance to learn myself! Take the time to systematically read though and I hope it will be helpful. Media Queries Media queries essentially are used in web design to create device- or situation-specific browsing experiences; this is done using the @media declaration within...
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CSS triangle custom border color

... You actually have to fake it with two triangles.... .container { margin: 15px 30px; width: 200px; background: #fff; border: 1px solid #a00; position: relative; min-height: 200px; padding: 20px; text-a...
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sql ORDER BY multiple values in specific order?

...I have a table with a indexed key and a non indexed field. I need to find all records with a certain value and return the row. I would like to know if I can order by multiple values. ...
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How to upgrade Git on Windows to the latest version?

...1.7.9.mysysgit.0. I downloaded the new version from the Git site and installed through the normal Git installer EXE. 14 A...
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How do you stash an untracked file?

... To stash your working directory including untracked files (especially those that are in the .gitignore) then you probably want to use this cmd: git stash --include-untracked More details: Update 17 May 2018: New versions of git now have git stash --all which stashes all files, includin...
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Programmer Puzzle: Encoding a chess board state throughout a game

..., 2 bishops, 1 queen and 1 king as illustrated here: Positions are generally recorded as a letter for the column followed by the number for the row so White’s queen is at d1. Moves are most often stored in algebraic notation, which is unambiguous and generally only specifies the minimal informa...