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When to use static vs instantiated classes
...n it's just a tool that works on other stuff (like, for instance, a syntax converter for BB code to HTML ; it doesn't have a life on its own)
(Yeah, I admit, really really overly-simplified...)
One thing about static methods/classes is that they don't facilitate unit testing (at least in PHP, but...
Split string every nth character?
...
i was being serious, I used this code in my binary converter in an emulator, I liked that it was a pythonic for loop haaha but thanks for further breaking down why i enjoy the method!
– Trevor Rudolph
Nov 3 '14 at 1:34
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Best way to create an empty object in JSON with PHP?
... the method to use.
PHP: Objects - Manual
If a value of any other type is converted to an object, a new instance of the stdClass built-in class is created. If the value was NULL, the new instance will be empty.
.. but, try to keep it safe!
Though you never know when/if the above will change, so i...
Difference between null and empty (“”) Java String
...not, 20 is a number). Same case for null: it's not a string, but it can be converted to one if you try to add it.
– daboross
Mar 4 '18 at 9:13
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How to detect shake event with android?
How can I detect a shake event with android? How can I detect the shake direction?
9 Answers
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What happens to a declared, uninitialized variable in C? Does it have a value?
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Static variables (file scope and function static) are initialized to zero:
int x; // zero
int y = 0; // also zero
void foo() {
static int x; // also zero
}
Non-static variables (local variables) are indeterminate. Reading them prior to assigning a ...
Are static fields inherited?
...ot a distinct variable.
Edit: actually 4 in all cases, as @ejames spotted and pointed out in his answer, which see.
Edit: the code in the second question is missing the int in both cases, but adding it makes it OK, i.e.:
class A
{
public:
static int MaxHP;
};
int A::MaxHP = 23;
class Cat: A
...
How to navigate through a vector using iterators? (C++)
... strings instead of the [] operator or the "at" method. From what I understand, iterators can be used to navigate through containers, but I've never used iterators before, and what I'm reading is confusing.
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How to determine CPU and memory consumption from inside a process?
...om the Performance Data Helper library (PDH), which is a bit "unintuitive" and takes a lot of painful trial and error to get to work. (At least it took me quite a while, perhaps I've been only a bit stupid...)
Note: for clarity all error checking has been omitted from the following code. Do check t...
How do I expand a tuple into variadic template function's arguments?
...ls <N-1> -> calls ... -> calls <0> which is the last one and the compiler will optimize away the various intermediate function calls to only keep the last one which is the equivalent of func(arg1, arg2, arg3, ...)
Provided are 2 versions, one for a function called on an object and...