Tutorial by Topics: word

Keywords are predefined, reserved identifiers with special meaning to the compiler. They cannot be used as identifiers in your program without the @ prefix. For example @if is a legal identifier but not the keyword if. C# has a predefined collection of "keywords" (or reserved words) ...

When you use the yield keyword in a statement, you indicate that the method, operator, or get accessor in which it appears is an iterator. Using yield to define an iterator removes the need for an explicit extra class (the class that holds the state for an enumeration) when you implement the IEnumer...

WordPress is an open source Content Management System (CMS) which is used to build and manage websites. WordPress is the most popular CMS on the internet by a country mile, powering about half of all CMS websites at time of writing and about a quarter of all websites on the internet. WordPress ...

As more secure web services avoid storing passwords in plain text format, languages such as PHP provide various (undecryptable) hash functions to support the more secure industry standard. This topic provides documentation for proper hashing with PHP. string password_hash ( string $password , ...

MySQL has some special names called reserved words. A reserved word can be used as an identifier for a table, column, etc. only if it's wrapped in backticks (`), otherwise it will give rise to an error. To avoid such errors, either don't use reserved words as identifiers or wrap the offending ident...

POSIX style, end of word: [[:>:]] POSIX style, start of word: [[:<:]] POSIX style, word boundary: [[:<:][:>:]] SVR4/GNU, end of word: \> SVR4/GNU, start of word: \< Perl/GNU, word boundary: \b Tcl, end of word: \M Tcl, start of word: \m Tcl, word boundary: \y Portable ER...

Certain words - so-called keywords - are treated specially in JavaScript. There's a plethora of different kinds of keywords, and they have changed in different versions of the language.

public static int myVariable; //Declaring a static variable public static myMethod() { } //Declaring a static method public static final double MY_CONSTANT; //Declaring a constant variable that is shared among all instances of the class public final double MY_CONSTANT; // Declaring a constant ...

const Type myVariable = initial; // Declares a const variable; cannot be changed const Type &myReference = myVariable; // Declares a reference to a const variable const Type *myPointer = &myVariable; // Declares a pointer-to-const. The pointer can change, but the underlying data member c...

map = %{} // creates an empty map map = %{:a => 1, :b => 2} // creates a non-empty map list = [] // creates an empty list list = [{:a, 1}, {:b, 2}] // creates a non-empty keyword list Elixir provides two associative data structures: maps and keyword lists. Maps are the Elixir key-...

Well-designed classes encapsulate their functionality, hiding their implementation while providing a clean, documented interface. This allows redesign or change so long as the interface is unchanged. In a more complex scenario, multiple classes that rely on each others' implementation details may ...

Option optionName [value] Option Explicit Option Compare {Text | Binary | Database} Option Private Module Option Base {0 | 1} OptionDetailExplicitRequire variable declaration in the module it's specified in (ideally all of them); with this option specified, using an undeclared (/mispelle...

Keywords have fixed meaning defined by the C++ standard and cannot be used as identifiers. It is illegal to redefine keywords using the preprocessor in any translation unit that includes a standard library header. However, keywords lose their special meaning inside attributes. asm (string-lite...