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Getting MAC Address
...inding function into your own code easily:
from uuid import getnode as get_mac
mac = get_mac()
The return value is the mac address as 48 bit integer.
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ObservableCollection not noticing when Item in it changes (even with INotifyPropertyChanged)
...leCollection<EntityViewModel> ContentList
{
get { return _contentList; }
}
public CollectionViewModel()
{
_contentList = new ObservableCollection<EntityViewModel>();
_contentList.CollectionChanged += ContentCollectionChanged;
}
public v...
What's the difference between SortedList and SortedDictionary?
...ET 4.5) to backup my claims.
Private members
// Fields
private const int _defaultCapacity = 4;
private int _size;
[NonSerialized]
private object _syncRoot;
private IComparer<TKey> comparer;
private static TKey[] emptyKeys;
private static TValue[] emptyValues;
private KeyList<TKey, TValue&...
If isset $_POST
...
Since !empty() is already checks for both, you can use this:
if (!empty($_POST["mail"])) {
echo "Yes, mail is set";
} else {
echo "No, mail is not set";
}
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Remove last item from array
...
learn by example:
let array_1 = [1,2,3,4];
let array_2 = [1,2,3,4];
let array_3 = [1,2,3,4];
array_1.splice(-1,1) // output --> [4] array_1 = [1,2,3]
array_2.slice(0,-1); // output --> [1,2,3] array_2 = [1,2,3,4]
array_3.pop(); //...
How to shuffle a std::vector?
...#include <algorithm>
#include <random>
auto rng = std::default_random_engine {};
std::shuffle(std::begin(cards_), std::end(cards_), rng);
Live example on Coliru
Make sure to reuse the same instance of rng throughout multiple calls to std::shuffle if you intend to generate different p...
How to serve an image using nodejs
...ar express = require('express');
var app = express();
var dir = path.join(__dirname, 'public');
app.use(express.static(dir));
app.listen(3000, function () {
console.log('Listening on http://localhost:3000/');
});
express
This version uses the express module but without the express.static m...
How to import the class within the same directory or sub directory?
...
Python 2
Make an empty file called __init__.py in the same directory as the files. That will signify to Python that it's "ok to import from this directory".
Then just do...
from user import User
from dir import Dir
The same holds true if the files are in a...
How to get the python.exe location programmatically? [duplicate]
...ded python environment. My suggestions is to deduce it from
import os
os.__file__
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How do I filter query objects by date range in Django?
...
Use
Sample.objects.filter(date__range=["2011-01-01", "2011-01-31"])
Or if you are just trying to filter month wise:
Sample.objects.filter(date__year='2011',
date__month='01')
Edit
As Bernhard Vallant said, if you want a query...