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What does Ruby have that Python doesn't, and vice versa?
...ould like to see an example of how Ruby blocks help you to write something more concisely or more beautiful than with Python because it has not blocks. Your example could be written: for i in [1, 2, 3, 4]: print(i + 5). It doesn't use blocks, but its concise and beautiful as well as the ruby each ex...
How do I convert a double into a string in C++?
...le wrapper? And thanks for providing the link, I actually did think it was more or less a simple wrapper :)
– Johannes Schaub - litb
Nov 5 '11 at 1:31
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Remove CSS class from element with JavaScript (no jQuery) [duplicate]
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Avoiding instanceof in Java
...ls". Essentially he's addressing cases like this, when polymorphism causes more trouble than it solves.
The issue is that to use polymorphism you have to make the logic of "handle" part of each 'switching' class - i.e. Integer etc. in this case. Clearly this is not practical. Sometimes it isn't ev...
Why shouldn't all functions be async by default?
...evel of "referential transparency" that makes these sorts of optimizations more tractable. By "referential transparency" I mean the property that the value of an expression does not depend on when it is evaluated. Expressions like 2 + 2 are referentially transparent; you can do the evaluation at com...
Differences between utf8 and latin1
...ibake. You may find the introductory text of this article useful (and even more if you know a bit Java).
Note that full 4-byte UTF-8 support was only introduced in MySQL 5.5. Before that version, it only goes up to 3 bytes per character, not 4 bytes per character. So, it supported only the BMP plan...
In plain English, what does “git reset” do?
...to point somewhere else, and possibly bring the index and work tree along. More concretely, if your master branch (currently checked out) is like this:
- A - B - C (HEAD, master)
and you realize you want master to point to B, not C, you will use git reset B to move it there:
- A - B (HEAD, maste...
Deep null checking, is there a better way?
...tunately, there already are such constructs in C#; we'd rather not add any more.)
– Eric Lippert
Jan 17 '10 at 18:44
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Is there a portable way to get the current username in Python?
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Why does C++11 not support designated initializer lists as C99? [closed]
...on C++ promotes.
On the other hand the designated initializers feature is more about exposing and making members easy to access directly in client code. This leads to things like having a person of age 18 (years?) but with height and weight of zero.
In other words, designated initializers suppor...