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LINQ Aggregate algorithm explained
...
A picture is worth a thousand words
Reminder:
Func<X, Y, R> is a function with two inputs of type X and Y, that returns a result of type R.
Enumerable.Aggregate has three overloads:
Overload 1:
A Aggregate<A>(IEnumerable<A>...
Socket.io rooms difference between broadcast.to and sockets.in
...function(data){
/* Broadcast to room1 except the sender. In other word,
It broadcast all the socket clients which are connected
to the room1 except the sender */
socket.broadcast.to('room1').emit('function', {foo:bar});
}
}
Socket.io
i) io.sockets.e...
Find the Smallest Integer Not in a List
...emory. In the form the question was asked, this would require O(N) 64-bit words.)
@Jorn comments that steps 1 through 3 are a variation on counting sort. In a sense he is right, but the differences are significant:
A counting sort requires an array of (at least) Xmax - Xmin counters where Xma...
How to overlay one div over another div
...our properties to position the element:
top
right
bottom
left
In other words, by setting position: absolute, we can add top: 100px to position the element 100 pixels from the top of the page. Conversely, if we set bottom: 100px the element would be positioned 100 pixels from the bottom of the pa...
What is the difference between DAO and Repository patterns?
...ain table (if used for DB persistence).
DAO - data access object (in other words - object used to access data)
A DAO is a class that locates data for you (it is mostly a finder, but it's commonly used to also store the data). The pattern doesn't restrict you to store data of the same type, thus you ...
In C#, can a class inherit from another class and an interface?
... unfortunately, interfaces inherit other interfaces. I find that choice of words unfortunate, but we're stuck with it now. I prefer to think of interfaces as requiring other interfaces. That is, when you say "interface IFoo : IBar" that means "an implementor of IFoo is required to also implement IBa...
What are the differences between double-dot “..” and triple-dot “…” in Git commit ranges?
... doesn't have, and the commits that B has that A doesn't have, or in other words, it will filter out all of the commits that both A and B share, thus only showing the commits that they don't both share.
Visualization with Venn Diagrams & Commit Trees
Here is a visual representation of git log ...
Why use getters and setters/accessors?
...ou threw out in the latter case but promoted in the former); adjusting the wording might help in that regard.
– Lightness Races in Orbit
Jul 6 '13 at 21:12
14
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Difference between classification and clustering in data mining? [closed]
...n clustering and classification. So let me first explain you about the key word supervised and unsupervised.
Supervised learning:
suppose you have a basket and it is filled with some fresh fruits and your task is to arrange the same type fruits at one place. suppose the fruits are apple,banana,cher...
Simple argparse example wanted: 1 argument, 3 results
...I did not know where to find the options after they were passed. In other words, I needed to understand how the args dict was generated as above.
– mrKelley
Dec 18 '13 at 18:54
4
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