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What is the difference between Google App Engine and Google Compute Engine?
... quota of instance-hours. Flexible runtime (i.e. "managed VMs") require at least one instance to run constantly.
EDIT (April 2017):
Cloud Functions (currently in beta) is the next level up from App Engine in terms of abstraction - no instances! It allows developers to deploy bite-size pieces of co...
Multiple inheritance/prototypes in JavaScript
...s:
The has trap is a trap for the in operator. I use some to check if at least one prototype contains the property.
The get trap is a trap for getting property values. I use find to find the first prototype which contains that property, and I return the value, or call the getter on the appropriate...
When should I use C++14 automatic return type deduction?
...
There's at least one situation where it's all but entirely necessary. Suppose you need to call functions, then log the results before returning them, and the functions don't necessarily all have the same return type. If you do so via ...
Why use AJAX when WebSockets is available?
....
However, this does not mean that Websockets managed to replace AJAX, at least not completely, especially as HTTP/2 adaptation is on the rise.
The short answer is that AJAX is still great for most REST applications, even when using Websockets. But god is in the details, so...:
AJAX for polling?
...
NSOperation vs Grand Central Dispatch
... @Sandy It's actually the opposite, GCD is used by NSOperation (at least in later versions of iOS and OS X).
– garrettmoon
Aug 20 '14 at 16:41
1
...
What is the formal difference in Scala between braces and parentheses, and when should they be used?
...g to find. Below is contrived (since the expressions are pure and will at least give a warning), but makes the point:
method {
1 +
2
3
}
method(
1 +
2
3
)
The first compiles, the second gives error: ')' expected but integer literal found. The author wanted to write 1 + 2 + 3.
One coul...
Why is the C++ STL is so heavily based on templates? (and not on *interfaces*)
...ell known algorithm trying to find its generic representation. ...
STL, at least for me, represents the only way programming is possible. It is, indeed, quite different from C++ programming as it was presented and still is presented in most textbooks. But, you see, I was not trying to program in C++...
Coding Practices which enable the compiler/optimizer to make a faster program
...et different behavior between debug and release), whereas this way will at least be consistent. Don't get me wrong, I like using restrict, but I like not needing it even more.
– celion
Mar 25 '10 at 7:25
...
How do Python's any and all functions work?
...cal or and and operators, respectively.
any
any will return True when at least one of the elements is Truthy. Read about Truth Value Testing.
all
all will return True only when all the elements are Truthy.
Truth table
+-----------------------------------------+---------+---------+
| ...
javascript: recursive anonymous function?
...s parameter instead of its name! So the function given to U should have at least one parameter that will bind to the function (itself).
In the example below, we have no exit condition, so we will just loop indefinitely until a stack overflow happens
const U = f => f (f) // call function f w...