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Single quotes vs. double quotes in C or C++
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Some compilers also implement an extension, that allows multi-character constants. The C99 standard says:
6.4.4.4p10: "The value of an integer character constant containing more
than one character (e.g., 'ab'), or
containing a character or escape
se...
Find first element by predicate
...ek(num -> System.out.println("will filter " + num))
.filter(x -> x > 5)
.findFirst()
.get();
System.out.println(a);
Which outputs:
will filter 1
will filter 10
10
You see that only the two first elements of the stream are actually processed.
So you ...
Python Linked List
...n Python.
I've never used a singly linked list in Python for any problem except educational.
Thomas Watnedal suggested a good educational resource How to Think Like a Computer Scientist, Chapter 17: Linked lists:
A linked list is either:
the empty list, represented by None, or
a node that co...
Unit testing that events are raised in C# (in order)
...events that gets raised, and the order they get raised in, you can easily extend your existing test:
[TestMethod]
public void Test_ThatMyEventIsRaised()
{
List<string> receivedEvents = new List<string>();
MyClass myClass = new MyClass();
myClass.PropertyChanged += delegate(...
Rerender view on browser resize with React
...idth, height] = useWindowSize();
return <span>Window size: {width} x {height}</span>;
}
The advantage here is the logic is encapsulated, and you can use this Hook anywhere you want to use the window size.
Using React classes:
You can listen in componentDidMount, something like this...
What is the difference between screenX/Y, clientX/Y and pageX/Y?
What is the difference between screenX / Y , clientX / Y and pageX / Y ?
7 Answers
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How to delete (not cut) in Vim?
... the second question, you could use <C-o>dw. <C-o> is used to execute a normal command without leaving the insert mode.
You can setup your own mappings to save typing, of course. I have these:
nnoremap <leader>d "_d
xnoremap <leader>d "_d
xnoremap <leader>p "_dP
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Time complexity of Euclid's Algorithm
I am having difficulty deciding what the time complexity of Euclid's greatest common denominator algorithm is. This algorithm in pseudo-code is:
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How do I get the different parts of a Flask request's url?
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You can examine the url through several Request fields:
A user requests the following URL:
http://www.example.com/myapplication/page.html?x=y
In this case the values of the above mentioned attributes would be the follow...
Count number of rows within each group
... I have done it, but it seems that I get 2 times each column except the one that is aggregated; so I have done a merge on them and it seems to be ok
– sop
May 18 '15 at 7:20
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