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How to work with Git branches and Rails migrations
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@pisaruk I know you answered this six years ago, but reading I'm curious what an example of a non-reversible migration would be. I'm having a hard time imagining a situation. I guess the simplest would be a dropped column containing a ...
How to set the current working directory? [duplicate]
... be a string. in addition, chdir expects a directory name, but you are specifying a file.
– mwil.me
Jan 14 '16 at 1:25
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How do you find the current user in a Windows environment?
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This is a good answer, but there are some caveats. If I enter whoami, I get desktop-machine\bballdave025. There are two parts, seen via: 1) echo %USERNAME%, result bballdave025; 2) echo %USERDOMAIN%, result DESKTOP-MACHINE. I guess one could say the 'complete username' is ava...
Where to learn about VS debugger 'magic names'
If you've ever used Reflector, you probably noticed that the C# compiler generates types, methods, fields, and local variables, that deserve 'special' display by the debugger. For instance, local variables beginning with 'CS$' are not displayed to the user. There are other special naming conventions...
How to scale a UIImageView proportionally?
... For anyone having the same problem in Swift: ScaleAspectFit is now an enum UIViewContentMode, so you would set imageView.contentMode = UIViewContentMode.ScaleAspectFit. Note the period.
– sudo make install
Feb 14 '15 at 10:28
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serve current directory from command line
...erve the current directory from command line with ruby? it would be great, if i can have some system wide configuration (e.g. mime-types) and simply launch it from every directory.
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Pandas - Get first row value of a given column
...could use:
In [30]: df_test['Btime'].iloc[0]
Out[30]: 1.2
There is a difference between df_test['Btime'].iloc[0] (recommended) and df_test.iloc[0]['Btime']:
DataFrames store data in column-based blocks (where each block has a single
dtype). If you select by column first, a view can be returned...
Putting git hooks into repository
...t .git/hooks into the projects repository (using symlinks, for example). If yes, what is the best way to deliver same hooks to different git users?
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Is there a way to perform “if” in python's lambda
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The syntax you're looking for:
lambda x: True if x % 2 == 0 else False
But you can't use print or raise in a lambda.
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Node.js: Difference between req.query[] and req.params
...ok up a parameter in both places (as well as req.body), but this method is now deprecated.
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