I always use <dl> for FAQs. Typically making the <dt> an anchor for the index of questions to link. edit… I should mention, this is my interpretation of the most semantic approach. As I see it, this is exactly the sort of thing <dl> is meant to mark up. As for CSS, it’s really subjective. … Read more
The monad laws are simply additional rules that instances are expected to follow, beyond what can be expressed in the type system. Insofar as Monad expresses a programming pattern, the laws are part of that pattern. Such laws apply to other type classes as well: Monoid has very similar rules to Monad, and it’s generally … Read more
There is a new internationalization support in iOS 9, which enables flipping of the interface from left to right and vice versa depending on the current system language. You can choose Arabic language to test it. Arabic is read from right to left, so the interface is flipped. Here you can read the Apple’s guide … Read more
A delimiter denotes the limits of something, where it starts and where it ends. For example: “this is a string” has two delimiters, both of which happen to be the double-quote character. The delimiters indicate what’s part of the thing, and what is not. A separator distinguishes two things in a sequence: one, two 1\t2 … Read more
Well the spec seems to allow it, provided that only the <dd> contains nested lists. The spec states that a <dt> is an inline element, so it can’t contain a nested list. A <dd> is a block element, so an inner list inside one of these is fine.
The difference is that you don’t need to escape single quotes in double quotes, or double quotes in single quotes. That is the only difference, if you do not count the fact that you must hold the Shift key to type “.
Semantics are the meaning of various elements in the program (or whatever). For example, let’s look at this code: int width, numberOfChildren; Both of these variables are integers. From the compiler’s point of view, they are exactly the same. However, judging by the names, one is the width of something, while the other is a … Read more
map is a higher level concept than loops, borrowed from functional programming. It doesn’t say “call this function on each of these items, one by one, from beginning to end,” it says “call this function on all of these items.” It might be implemented as a loop, but that’s not the point — it also … Read more
I’ll just copy from Wikipedia: Library: A library is a collection of subroutines or classes used to develop software. Libraries contain code and data that provide services to independent programs. This allows code and data to be shared and changed in a modular fashion. Framework: A software framework, in computer programming, is an abstraction in … Read more
Incrementing / Decrementing Operators ++ increment operator — decrement operator Example Name Effect ——————————————————————— ++$a Pre-increment Increments $a by one, then returns $a. $a++ Post-increment Returns $a, then increments $a by one. –$a Pre-decrement Decrements $a by one, then returns $a. $a– Post-decrement Returns $a, then decrements $a by one. These can go before or … Read more