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What are the applications of binary trees?
...ere are lots of useful data structures and algorithms that make use of the word "binary", and "binary SEARCH tree" is in fact one of them, but that is not the question that was asked. What use does a plain old "binary tree" have, not a sorted one, not a balanced one, not a full one. Just a plain o...
How should I have explained the difference between an Interface and an Abstract class?
...an example first:
public interface LoginAuth{
public String encryptPassword(String pass);
public void checkDBforUser();
}
Suppose you have 3 databases in your application. Then each and every implementation for that database needs to define the above 2 methods:
public class DBMySQL implem...
Differences between socket.io and websockets
...
@moka, from your words can i conclude that the following statement is wrong? Socket.IO is actually more than a layer over WebSockets.
– Pulak Kanti Bhattacharyya
Aug 9 '14 at 15:18
...
Should services always return DTOs, or can they also return domain models?
...r defines the application's boundery, it encapsulates the domain. In other words it protects the domain.
Sometimes service needs to return data object that wasn't defined in the domain
Can you provide an example of this data object?
If we should strictly stick to DTOs, should they be defin...
What is the difference between YAML and JSON?
...ioned above by everybody). For machine/machine interop use JSON". In other words: if your target audience is a human, YAML is better. If the target is another program (but you still want the data to be human readable), use JSON.
– Florin T.
Aug 30 '18 at 0:05
...
Are there other whitespace codes like   for half-spaces, em-spaces, en-spaces etc useful in HTML
...'t a space character. It doesn't take up any space, and isn't treated as a word separator. The only purpose it has is preventing adjacent characters from being joined into a ligature, which is sometimes useful in non-Latin scripts.
– duskwuff -inactive-
Aug 11 ...
Is it a good practice to use try-except-else in Python?
...step, regardless of whether you actually use exceptions or not).
In other words, your understanding that "exceptions are for the exceptional" is a rule that makes sense in some other languages, but not for Python.
"However, if it is included in the language itself, there must be a
good reason...
What are MVP and MVC and what is the difference?
...56 mentions, in MVC, controller methods are based on behaviors -- in other words, you can map multiple views (but same behavior) to a single controller. In MVP, the presenter is coupled closer to the view, and usually results in a mapping that is closer to one-to-one, i.e. a view action maps to its ...
How can I profile C++ code running on Linux?
...), and all the other possibilities are almost impossible (0.001). In other words, our prior certainty is that I is cheap. Then we get:
Prior
P(f=x) x P(o=2/2|f=x) P(o=2/2&& f=x) P(o=2/2&&f >= x) P(f >= x | o=2/2)
0.001 1 1 ...
Swift and mutating struct
...rammers, this is also very familiar concept. This is exactly what const keyword do in C/C++.
Also, immutable value can be very nicely optimised. In theory, Swift compiler (or LLVM) can perform copy-elision on values passed by let, just like in C++. If you use immutable struct wisely, it will outper...