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C#: Raising an inherited event
...ou have to Invoke the eventhandler or not).
Then, in classes that inherit from this base class, you can just call the OnFinished or OnLoading methods to raise the events:
public AnotherClass : MyClass
{
public void DoSomeStuff()
{
...
OnLoading(EventArgs.Empty);
......
What's the meaning of “=>” (an arrow formed from equals & greater than) in JavaScript?
...below).
You can read more in the Mozilla documentation on arrow functions.
From the Mozilla documentation:
An arrow function expression (also known as fat arrow function) has a shorter syntax compared to function expressions and lexically binds the this value (does not bind its own this, arguments,...
Convert a 1D array to a 2D array in numpy
...B = np.reshape(A, (-1, 2))
where -1 infers the size of the new dimension from the size of the input array.
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Django get the static files URL in view
...ves the implementation to the Django framework.
# Original answer said:
# from django.templatetags.static import static
# Improved answer (thanks @Kenial, see below)
from django.contrib.staticfiles.templatetags.staticfiles import static
url = static('x.jpg')
# url now contains '/static/x.jpg', ass...
How is this fibonacci-function memoized?
...ion, fib n = fib (n-1) + fib (n-2), the function itself gets called, twice from the top, causing the exponential explosion. But with that trick, we set out a list for the interim results, and go "through the list":
fib n = (xs!!(n-1)) + (xs!!(n-2)) where xs = 0:1:map fib [2..]
The trick is to cau...
Safest way to convert float to integer in python?
...t representations are possible where int(floor(2.3)) might be 1.
To quote from Wikipedia,
Any integer with absolute value less than or equal to 224 can be exactly represented in the single precision format, and any integer with absolute value less than or equal to 253 can be exactly represented...
How to validate an email address using a regular expression?
...ut a hitch. Python and C# can do that too, but they use a different syntax from those first two. However, if you are forced to use one of the many less powerful pattern-matching languages, then it’s best to use a real parser.
It's also important to understand that validating it per the RFC tells ...
How to remove the arrows from input[type=“number”] in Opera [duplicate]
...gin: 0;
}
<input type="number" step="0.01"/>
This tutorial from CSS Tricks explains in detail & also shows how to style them
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How do I keep Python print from adding newlines or spaces? [duplicate]
...
You can from __future__ import print_function in Python 2.6
– jfs
Nov 2 '08 at 18:10
14
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Android AsyncTask threads limits?
... database in the phone. For all those operations (updates, retrieving data from db and etc.) I use async tasks. As up till now I didn't see why I shouldn't use them, but recently I experienced that if I do some operations some of my async tasks simply stop on pre-execute and don't jump to doInBackgr...