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Why is there no Tree class in .NET?
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What would you want from such an implementation?
Binary tree?
Red-black?
Radix tree?
B-tree?
R-tree?
R*-tree?
A tree is more a pattern than a data structure, and they tend to be used where performance matters (so implementation details probabl...
How to declare a global variable in php?
...GLOBALS['a'] = 'localhost';
function body(){
echo $GLOBALS['a'];
}
From the Manual:
An associative array containing references to all variables which are currently defined in the global scope of the script. The variable names are the keys of the array.
If you have a set of functions ...
MySQL: #126 - Incorrect key file for table
I got the following error from a MySQL query.
17 Answers
17
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Shared-memory objects in multiprocessing
..., where one process holds the memory and a manager arbitrates access to it from other processes (even over a network).
The Manager approach can be used with arbitrary Python objects, but will be slower than the equivalent using shared memory because the objects need to be serialized/deserialized an...
Android Preferences: How to load the default values when the user hasn't used the preferences-screen
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this question is similar to mine:
initialize-preferences-from-xml-in-main-activity
Just use this code in onCreate method:
PreferenceManager.setDefaultValues(this, R.xml.preference, false);
It will load your preferences from XML, and last parameter (readAgain) will guarantee that u...
Simple argparse example wanted: 1 argument, 3 results
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Use the 'short form' when calling program directly from command line and the 'long form' when you run a program/command within a script. In that case it is more human readable with the long form and thus easier to follow the logic of the code/script.
– o...
Most simple but complete CMake example
...ngs, and parsed by the function implementation.
you can clone everything from github
cmake_minimum_required(VERSION 3.0)
project(example_project)
###############################################################################
## file globbing #####################################################...
Understanding the basics of Git and GitHub [closed]
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You did some debugging. Before you commit you always look at the changes from the last commit. You see your debug print statement that you forgot to delete.
Make sure you check gitimmersion.com.
share
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Base64 encoding and decoding in client-side Javascript
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in node 5+, use Buffer.from, as new Buffer(string) is deprecated. Buffer.from(jwt.split('.')[1], 'base64').toString()
– Ray Foss
Oct 9 '19 at 18:46
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Difference between “@id/” and “@+id/” in Android
...a new resource name and add in to the R.java file but what about @id/ ? From the documentation of ID : when referencing an Android resource ID , you do not need the plus symbol, but must add the android package namespace, like so:
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