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Difference between an API and SDK
...ier to visually understand hardware analogy
– Sliceoftime
May 7 '09 at 14:50
17
Continuing this g...
Why exactly is eval evil?
...ons are evaluated and one can also evaluate the function part. Most of the time the use of EVAL shows a lack of understanding of the evaluator.
It is the same problem with macros. Often beginners write macros, where they should write functions - not understanding what macros are really for and not u...
What happens when a computer program runs?
...irectly). It is commonly used for data structures that you allocate at runtime (in C++, using new and delete, and malloc and friends in C, etc).
The stack and heap, on the x86 architecture, both physically reside in your system memory (RAM), and are mapped through virtual memory allocation into th...
Calling a JavaScript function named in a variable [duplicate]
...Space["functionName"]();
Avoid eval, and avoid passing a string in to setTimeout and setInterval. I write a lot of JS, and I NEVER need eval. "Needing" eval comes from not knowing the language deeply enough. You need to learn about scoping, context, and syntax. If you're ever stuck with an eval, j...
Large Object Heap Fragmentation
...s behave very differently in allocation as well. The main heap is (at this time) basically a stack in allocation patterns - it always allocates at the top, ignoring any free space - when compaction comes, the free spaces are squeezed out. This makes allocation almost a no-op, and helps data locality...
Use CSS3 transitions with gradient backgrounds
...I tested gradient transitions in 2016 in IE and they seemed to work at the time, but my test code no longer works.)
Update: October 2018
Gradient transitions with un-prefixed new syntax [e.g. radial-gradient(...)]now confirmed to work (again?) on Microsoft Edge 17.17134. I don't know when this was ...
How to search for “R” materials? [closed]
...
Most of the time I find googling for R plus my searching term works fine. When it doesn't, I'll try using "R project", or adding CRAN, statistic or language to the search.
Is there a particular topic that you're having problems searchi...
Why isn't sizeof for a struct equal to the sum of sizeof of each member?
...tly in the struct at fixed offsets. The compiler knows all this at compile time so the pointer is implicit. For example, if you have a struct variable of this type called s then &s.a == &s and &s.d == &s + 12 (given the alignment shown in the answer). The pointer is only stored if t...
Why should I avoid std::enable_if in function signatures
...n a helper class) that receives a dummy argument based on the same compile-time condition that you use in the enable_if.
template<typename T>
T fun(T arg)
{
return detail::fun(arg, typename some_template_trait<T>::type() );
}
namespace detail {
template<typename T>
...
Accessing private member variables from prototype-defined functions
...methods.
The drawback is that this is the only thing that's different each time a prototypal function is called.
Therefore, any private fields must be accessible through this, which means they're going to be public. So we just stick to naming conventions for _private fields.
Don't bother mixing Cl...