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LINQ - Convert List to Dictionary with Value as List
...and put that grouping into a Dictionary<long,List<MyObject>>. If so then try the following
List<MyObject> list = ...;
var map = list
.GroupBy(x => x.KeyedProperty)
.ToDictionary(x => x.Key, x => x.ToList());
...
Delete all lines beginning with a # from a file
...llowed by # might also be treated as a comment:
grep -v '^ *#' filename
if whitespace is only spaces, or
grep -v '^[ ]#' filename
where the two spaces are actually a space followed by a literal tab character (type "control-v tab").
For all these commands, omit the filename argument to read f...
The command rbenv install is missing
...stall ruby-build
# Building ruby-build form Ports will install rbenv only if the RBENV option is set
cd /usr/ports/devel/ruby-build
make install
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How to run a shell script at startup
...executable with:
chmod +x /etc/init.d/start_my_app
Thanks to @meetamit, if this does not run you have to create a symlink to /etc/rc.d/
ln -s /etc/init.d/start_my_app /etc/rc.d/
Please note that on latest Debian, this will not work as your script have to be LSB compliant (provide, at least, th...
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 change an Android app's name?
... By changing the android:label field in your application node in AndroidManifest.xml.
Note: If you have added a Splash Screen and added
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNC...
Where to define custom error types in Ruby and/or Rails?
...stom error types in a Ruby library (gem) or Ruby on Rails application? Specifically:
5 Answers
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How to change a span to look like a pre with CSS?
...
@shindigo Have you tried using overflow: scroll? Or if you only want horizontal scrolling overflow-x: scroll developer.mozilla.org/en-US/docs/Web/CSS/overflow
– Kanmuri
Sep 3 '14 at 17:06
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Where do gems install?
...you can check:
echo $GEM_HOME
Bundler
$ bundle show --paths
For specific gem:
$ bundle show 'gem_name'
Gem
$ gem env
For specific gem:
$ gem which 'gem_name'
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Get context of test project in Android junit test case
...n().context
}
@Test
fun someTest() {
TODO()
}
}
If you want also app context run:
InstrumentationRegistry.getInstrumentation().targetContext
Full running example: https://github.com/fada21/AndroidTestContextExample
Look here: What's the difference between getTargetCont...