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How do I convert a Ruby class name to a underscore-delimited symbol?
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Rails comes with a method called underscore that will allow you to transform CamelCased strings into underscore_separated strings. So you might be able to do this:
FooBar.name.underscore.to_sym
But you will have to install Activ...
What is a ViewModelLocator and what are its pros/cons compared to DataTemplates?
...ViewModelLocator is, how it works, and what the pros/cons are for using it compared to DataTemplates?
3 Answers
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Git merge errors
...# Switch to the topic branch:
git checkout 9-sign-in-out
# Create a merge commit, which looks as if it's merging in from master, but is
# actually discarding everything from the master branch and keeping everything
# from 9-sign-in-out:
git merge -s ours master
# Switch back to the master branch:
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How can I use grep to show just filenames on Linux?
... @Hauke And my answer was -l. I mentioned -H only because the user's command in the question included -H and it is redundant when -l is given.
– Random832
Apr 26 '18 at 15:58
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Select distinct values from a table field
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python numpy ValueError: operands could not be broadcast together with shapes
... both of the values can be expanded in one or more dimensions to make them compatible. This operation are called broadcasting. Dimensions where size is 1 or which are missing can be used in broadcasting.
In the example above the dimensions are incompatible, because:
97 2
2 1
Here there are ...
Increment a database field by 1
... of say logins, how would I go about updating that field by 1 within a sql command?
5 Answers
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How to import existing *.sql files in PostgreSQL 8.4?
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From the command line:
psql -f 1.sql
psql -f 2.sql
From the psql prompt:
\i 1.sql
\i 2.sql
Note that you may need to import the files in a specific order (for example: data definition before data manipulation). If you've got ba...
Android Studio/Intellij Idea: “Table of Contents” for a class
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Markdown vs markup - are they related?
...: http://daringfireball.net/projects/markdown/
These days the term is more commonly used to refer to markup languages that mimic the style of the library. See: https://en.wikipedia.org/wiki/Markdown
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