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Ways to save enums in database
...store enumerations as numerical ordinal values anymore; it makes debugging and support way too difficult. We store the actual enumeration value converted to string:
public enum Suit { Spade, Heart, Diamond, Club }
Suit theSuit = Suit.Heart;
szQuery = "INSERT INTO Customers (Name, Suit) " +
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Checking if a key exists in a JavaScript object?
...r, if you want to particularly test for properties of the object instance (and not inherited properties), use hasOwnProperty:
obj.hasOwnProperty("key") // true
For performance comparison between the methods that are in, hasOwnProperty and key is undefined, see this benchmark
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Access is denied when attaching a database
... answered May 22 '12 at 18:18
MandoMandoMandoMando
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Detect when browser receives file download
...lution uses JavaScript on the client.
The client algorithm:
Generate a random unique token.
Submit the download request, and include the token in a GET/POST field.
Show the "waiting" indicator.
Start a timer, and every second or so, look for a cookie named "fileDownloadToken" (or whatever you dec...
Differences between INDEX, PRIMARY, UNIQUE, FULLTEXT in MySQL?
What are the differences between PRIMARY, UNIQUE, INDEX and FULLTEXT when creating MySQL tables?
3 Answers
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What's the cause of this FatalExecutionEngineError in .NET 4.5 beta? [closed]
...ecutionEngineError exception. I spent a good 30 minutes trying to isolate and minimize the culprit sample. Compile this using Visual Studio 2012 as a console app:
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How to use JavaScript source maps (.map files)?
...js.map extension shipped with some JavaScript libraries (like Angular ), and that just raised few questions in my head:
5...
Download data url file
...ess from a browser. They can just drag their zip directly into the browser and it'll let them download all the files within. They can also create new zip files by dragging individual files in.
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MySQL stored procedure vs function, which would I use when?
I'm looking at MySQL stored procedures and function. What is the real difference?
5 Answers
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How to avoid using Select in Excel VBA
I've heard much about the understandable abhorrence of using .Select in Excel VBA, but am unsure of how to avoid using it. I am finding that my code would be more re-usable if I were able to use variables instead of Select functions. However, I am not sure how to refer to things (like the Activ...