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Avoiding instanceof in Java
Having a chain of "instanceof" operations is considered a "code smell". The standard answer is "use polymorphism". How would I do it in this case?
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Converting RGB to grayscale/intensity
When converting from RGB to grayscale, it is said that specific weights to channels R, G, and B ought to be applied. These weights are: 0.2989, 0.5870, 0.1140.
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Why do Java programmers like to name a variable “clazz”? [closed]
I've seen lots of codes have declaration like Class clazz , where does this originate from ? Is this some kind of convention ? I think 'clazz' is not even an English word , has no meaning at all , how can so many programmers name a wrong name coincidentally ?
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Math functions in AngularJS bindings
Is there a way to use math functions in AngularJS bindings?
13 Answers
13
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Why does “pip install” inside Python raise a SyntaxError?
...install from the Python shell, but I get a SyntaxError . Why do I get this error? How do I use pip to install the package?
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Auto increment primary key in SQL Server Management Studio 2012
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Make sure that the Key column's datatype is int and then setting identity manually, as image shows
Or just run this code
-- ID is the name of the [to be] identity column
ALTER TABLE [yourTable] DROP COLUMN ID
ALTER TABLE [yourTable] ADD ID INT IDENTITY(1,1)
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Nginx no-www to www and www to no-www
...d following a tutorial and having searched the net and so far can't get this sorted.
17 Answers
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Commenting multiple lines in DOS batch file
I have written huge MS DOS Batch file. To test this batch file I need to execute some lines only and want to hide/comment out remaining.
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Declaring javascript object method in constructor function vs. in prototype [duplicate]
... advantage of the first approach (initializing methods in the constructor) is that you can take advantage of closures by making use of local variables defined within the constructor in your methods. These variables are not directly accessible outside the constructor function so are effectively "priv...
Is there a better Windows Console Window? [closed]
... command line in Windows frustrating, primarily because the console window is wretched to use compared to terminal applications on linux and OS X such as "rxvt", "xterm", or "Terminal". Major complaints:
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