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What's the best way of structuring data on firebase?
...ts of members all in the same place, if you want to be able to iterate the groups later).
The primary difference between Firebase's real-time data and a SQL environment is querying data. There's no simple way to say "SELECT USERS WHERE X = Y", because of the real-time nature of the data (it's const...
Difference between Lookup() and Dictionary(Of list())
...e equivalent in efficiency - the lookup may well use a Dictionary<TKey, GroupingImplementation<TValue>> behind the scenes, for example. Choose between them based on your requirements. Personally I find that the lookup is usually a better fit than a Dictionary<TKey, List<TValue>&...
Use find command but exclude files in two directories
...der "./pathname".
find expressions are just condition evaluation.
\( \) - groups operation (you can use -path "./tmp" -prune -o -path "./scripts" -prune -o, but it is more verbose).
-path "./script" -prune - if -path returns true and is a directory, return true for that directory and do not descend...
specify project file of a solution using msbuild
...tly without any additional work. You really should treat the sln file as a group of projects to make working in Visual Studio easier and not as a build input.
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How to write a Python module/package?
...gt; import hello
>>> hello.helloworld()
'hello'
>>>
To group many .py files put them in a folder. Any folder with an __init__.py is considered a module by python and you can call them a package
|-HelloModule
|_ __init__.py
|_ hellomodule.py
You can go about with the import...
'parent.relativePath' points at my com.mycompany:MyProject instead of org.apache:apache - Why?
...t resolves the parent pom from the repositories.
<parent>
<groupId>org.apache</groupId>
<artifactId>apache</artifactId>
<version>8</version>
<relativePath></relativePath>
</parent>
Here is the relevant doc.
This f...
How to use Greek symbols in ggplot2?
... "\u03b1 \u03a9 y-axis title", # works fine
color="\u03b1 \u03a9 Groups:") + # works fine
scale_x_continuous(breaks = seq(10, 35, 5),
labels = paste0(seq(10, 35, 5), "\u03a9*")) + # works fine; to label the ticks
ggrepel::geom_text_repel(aes(label = paste(rowname...
What is Gradle in Android Studio?
...ate tool (e.g. takes java class files and converts them to dex files), and groups all of them into one compressed file, our beloved APK.
This build system uses some conventions: an example of one is to specify the directory containing the source files (in Eclipse it is \src folder) or resources fil...
Why does the 260 character path length limit exist in Windows?
...rted before the key was set.
The registry key can also be controlled via Group Policy at Computer Configuration > Administrative Templates > System > Filesystem > Enable NTFS long paths.
You can also enable the new long path behavior per app via the manifest:
<application xmlns="...
Technically, why are processes in Erlang more efficient than OS threads?
...unicating tasks. One of the gains from doing that is that in the case of a group of tasks that hand a piece of work around and wait for the result, that can all be done in a single OS thread on a single processor, which is more efficient than having context switches.
– Donal Fe...