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How do I use vim registers?
...the last delete, "2 holds the second last delete, "3 holds the third last, etc up to "9
– James
Dec 5 '11 at 21:45
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The Ruby %r{ } expression
...With %r, you could use any delimiters.
You could use %r{} or %r[] or %r!! etc.
The benefit of using other delimeters is that you don't need to escape the / used in normal regex literal.
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im...
How to create war files
...under src but need to be available at runtime (e.g. properties, XML files, etc.):
<target name="compile">
<delete dir="${dist.dir}/web/WEB-INF/classes" />
<mkdir dir="${dist.dir}/web/WEB-INF/classes" />
<javac destdir="${dist.dir}/web/WEB-INF/classes" srcdir="src"&g...
How to specify the order of CSS classes?
...ctors, you can specify things like "begins with", "ends with", "contains", etc. See example below using your same markup, but with attribute selectors.
[class$="extra"] {
color: #00529B;
border:1px solid #00529B;
background-color: #BDE5F8;
}
[class$="basic"] {
border: 1px solid #A...
Should I use `import os.path` or `import os`?
...point out that import os and a import os.path is daft if you e.g. need os.getcwd() and os.path.isfile()
– Nick T
Apr 27 '10 at 21:32
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System.currentTimeMillis vs System.nanoTime
...urrentTimeMillis will not (e.g. if you change the date, hit a leap second, etc.) This is an extremely important distinction for some types of systems.
– charstar
Apr 10 '11 at 10:32
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Create a menu Bar in WPF?
... comprehensive tutorial on WPF Menus, Command Binding adding Shortcut keys etc at youtu.be/bdmVWGjpA_8
– Zaheer
Apr 26 at 1:18
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Detect blocked popup in Chrome
...as been loaded. Or else it might be when everything (images, outboard CSS, etc.) has been loaded. You could test this easily by adding a very large graphic to the popup (clear your cache first!). If you were using a Javascript Framework like jQuery (or something similar), you could use the ready() e...
Why can't I inherit static classes?
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Static methods are only held once in memory. There is no virtual table etc. that is created for them.
If you invoke an instance method in .NET, you always give it the current instance. This is hidden by the .NET runtime, but it happens. Each instance method has as first argument a pointer (refer...
Label encoding across multiple columns in scikit-learn
...fantastic replies)
However, for the purpose of a few classification tasks etc. you could use
pandas.get_dummies(input_df)
this can input dataframe with categorical data and return a dataframe with binary values. variable values are encoded into column names in the resulting dataframe. more
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