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How to filter None's out of List[Option]?
If I have a List[Option[A]] in Scala, what is the idiomatic way to filter out the None values?
3 Answers
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How can I add an empty directory to a Git repository?
... stay (almost) empty (in the repository) is to create a .gitignore file inside that directory that contains these four lines:
# Ignore everything in this directory
*
# Except this file
!.gitignore
Then you don't have to get the order right the way that you have to do in m104's solution.
This als...
Match whole string
...Jake if your string was "abc def ghi" then /^abc$/ would not work. ex: jsfiddle.net/XUyAc
– matchew
Jun 9 '11 at 20:41
3
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What are the complexity guarantees of the standard containers?
Apparently ;-) the standard containers provide some form of guarantees.
3 Answers
3
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gulp globbing- how to watch everything below directory
...rent directory (e.g., ./.git/). Adding the extra /* on the end seems to avoid that problem: gulp.watch('./build/**/*', ...).
– medmunds
Jul 2 '15 at 0:35
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Hyphen, underscore, or camelCase as word delimiter in URIs?
...use the hyphen separates words (so that a search engine can index the individual words), and is not a word character. Underscore is a word character, meaning it should be considered part of a word.
Double-click this in Chrome: camelCase
Double-click this in Chrome: under_score
Double-click this in ...
Ruby on Rails. How do I use the Active Record .build method in a :belongs to relationship?
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id: "1"
};
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Unable to find a locale path to store translations for file __init__.py
... answered Jan 23 '15 at 6:48
David DehghanDavid Dehghan
11.6k22 gold badges7171 silver badges7878 bronze badges
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JavaScript: empty array, [ ] evaluates to true in conditional structures. Why is this?
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tags: "".split(" "),
id: "1"
};
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Group by & count function in sqlalchemy
...dited Sep 22 '17 at 9:40
Dag Høidahl
6,30977 gold badges4545 silver badges6262 bronze badges
answered Nov 3 '10 at 10:44
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