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What is a difference between
...e mnemonic PECS, which stands for "Producer Extends, Consumer Super".
The idea is that if you code is consuming the generic values from the object then you should use extends. but if you are producing new values for the generic type you should use super.
So for example:
public void pushAll(Ite...
Why do Java webapps use .do extension? Where did it come from?
...be completely unknown.
Even change extension to php or aspx could be good idea.
Well indeed this is security by obfuscation, but this isn't the opposite of good security. Layering security by obscurity on top of an already secure system might help. There are interesting pros and cons of security b...
How do I declare a 2d array in C++ using new?
... One row may be at address 1,000, another at address 100,000—you get the idea. This means that when you're traversing the matrix, you're leaping through memory like a wild person. This tends to result in cache misses that vastly slow down your processing time.
So, if you absolute must have your c...
What do these words mean in Git: Repository, fork, branch, clone, track?
...tHub) have blurred these terms and both terms basically represent the same idea but in different ways.
– redteam316
Jan 27 '14 at 14:39
...
What is a Java ClassLoader?
...get a feeling of this recursive class loading as well as the class loading idea in general, consider the following simple class:
public class HelloApp {
public static void main(String argv[]) {
System.out.println("Aloha! Hello and Bye");
}
}
If you run this class specifying the -verbo...
How to create a custom string representation for a class object?
...nces will be instances of some strange derivation, so it's probably a good idea to add a __repr__ for the instances as well.
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Why use make over a shell script?
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The general idea is that make supports (reasonably) minimal rebuilds -- i.e., you tell it what parts of your program depend on what other parts. When you update some part of the program, it only rebuilds the parts that depend on that. Wh...
Golang production web application configuration
... create your own reverse proxy in Go? Would this be a significantly worse idea than using nginx or haproxy? I mean Go comes with great HTTP/HTTPS/HTTP/2 support.
– thomasrutter
Mar 21 '17 at 4:14
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Single Line Nested For Loops
...nt structure for loop? And how would it look?
Sure, but it's not a great idea. Here, for example, gives you a list of lists of characters:
[[ch for ch in word] for word in ("apple", "banana", "pear", "the", "hello")]
sha...
Scrolling a flexbox with overflowing content
...
From your blog post: "I have no idea why that works, and the specs says nothing either". So, I'm looking for an explanation of why it works. I've skimmed the specs, but as you said, nothing jumps out there.
– markrian
...