Tutorial by Topics: rds

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) ...

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...

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.

bind -P show all configured shortcuts.

UPDATE table-Name [[AS] correlation-Name] SET column-Name = Value [ , column-Name = Value} ]* [WHERE clause] UPDATE table-Name SET column-Name = Value [ , column-Name = Value ]* WHERE CURRENT OF

scope(exit) - statements are called no matter how the current block was exited scope(success) - statements are called when the current block was exited normally scope(failure) - statements are called when the current block was exited through exception throwing Using scope guards makes co...

Mixin with Guards .mixin-name(<arguments>) when <is-negation> (<ref-variable> <operator> <value>) CSS Guards <selector> when <is-negation> (<ref-variable> <operator> <value>) ParameterDetailsargumentsThe variables that are passed...

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...

target_compile_features(target PRIVATE|PUBLIC|INTERFACE feature1 [feature2 ...])

Set IFS to newline: IFS=$'\n' Set IFS to nullstring: IFS= Set IFS to / character: IFS=/ ParameterDetailsIFSInternal field separator-xPrint commands and their arguments as they are executed (Shell option) Word splitting is not performed during assignments e.g newvar=$var Word splitting...