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Why do we need RESTful Web Services?
...s and the Design of Network-based Software Architectures, which is worth a read if you haven't looked at it.
At the top of the dissertation is a quote:
Almost everybody feels at peace with nature: listening to the ocean
waves against the shore, by a still lake, in a field of grass, on a
windblown ...
How does StartCoroutine / yield return pattern really work in Unity?
...ing a process that will take place over multiple frames – without multithreading – you need to find some way of breaking the work up into chunks that can be run one-per-frame. For any algorithm with a central loop, it’s fairly obvious: an A* pathfinder, for example, can be structured such that...
Asking the user for input until they give a valid response
... continue
else:
#age was successfully parsed!
#we're ready to exit the loop.
break
if age >= 18:
print("You are able to vote in the United States!")
else:
print("You are not able to vote in the United States.")
Implementing Your Own Validation Rules
If yo...
How do I pass a unique_ptr argument to a constructor or a function?
...ident just from the function signature what's going to happen; you have to read the implementation (or associated documentation).
Because of that, I wouldn't suggest this as an interface.
(C) By const l-value reference
Base(std::unique_ptr<Base> const &n);
I don't show an implementati...
Is “double hashing” a password less secure than just hashing it once?
...,000 iterations, or bcrypt with cost factor of 12 or 13.
More background
Read PKCS #5 for authoritative information on the role of salt and iterations in hashing. Even though PBKDF2 was meant for generating encryption keys from passwords, it works well as a one-way-hash for password authentication...
Fastest way to iterate over all the chars in a String
...PDATE: Before you try this ever in a production environment (not advised), read this first: http://www.javaspecialists.eu/archive/Issue237.html
Starting from Java 9, the solution as described won't work anymore, because now Java will store strings as byte[] by default.
SECOND UPDATE: As of 2016-10-2...
What's so bad about Template Haskell?
...ent matter of change when.
This is where using zeroth pays off - you're already versioning the generated files - so you'll always know when the form of the generated code has changed. Looking at the diffs might be a bit gnarly, though, for large amounts of generated code, so that's one place where ...
Should I implement __ne__ in terms of __eq__ in Python?
...e __ne__ method follows automatically from __eq__ only if
__ne__ isn't already defined in a superclass. So, if you're
inheriting from a builtin, it's best to override both.
If you need your code to work in Python 2, follow the recommendation for Python 2 and it will work in Python 3 just fine...
Move assignment operator and `if (this != &rhs)`
...gorithms are defined so as to produce undefined behavior on no-op copies already (ouch; the 20-year-old memmove gets the trivial case right but std::move doesn't!). So I guess I haven't thought of a "slam dunk" for self-assignment yet. But obviously self-assignment is something that happens a lot in...
Refresh image with a new one at the same url
...mgReload(), and MAY be a relative URI;
// However, be aware that if you're reading the src property of an <img> DOM object, you'll always get back a fully-qualified URI,
// even if the src attribute was a relative one in the original HTML. So watch out if trying to compare the two!
// NOTE th...