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  2. Switch statement - Wikipedia

    en.wikipedia.org/wiki/Switch_statement

    Switch expressions are introduced in Java SE 12, 19 March 2019, as a preview feature. Here a whole switch expression can be used to return a value. There is also a new form of case label, case L-> where the right-hand-side is a single expression. This also prevents fall through and requires that cases are exhaustive.

  3. Perl language structure - Wikipedia

    en.wikipedia.org/wiki/Perl_language_structure

    The largest is that unlike switch/case structures, given/when statements break execution after the first successful branch, rather than waiting for explicitly defined break commands. Conversely, explicit continue s are instead necessary to emulate switch behavior.

  4. Perl control structures - Wikipedia

    en.wikipedia.org/wiki/Perl_control_structures

    Perl provides three loop control keywords that all accept an optional loop label as an argument. If no label is specified, the keywords act on the innermost loop. Within nested loops, the use of labels enables control to move from an inner loop to an outer one, or out of the outer loop altogether.

  5. Conditional (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Conditional_(computer...

    1 2 3 Case-expressions in Haskell and match-expressions in F# and Haskell allow both switch-case and pattern matching usage. ^ In a Ruby case construct, regular expression matching is among the conditional flow-control alternatives available.

  6. Perl 5 version history - Wikipedia

    en.wikipedia.org/wiki/Perl_5_version_history

    Perl is an open-source programming language whose first version, ... The Switch and Smart Match added in v5.10 are deprecated; ... fc case-folding function; 5.14.0 ...

  7. Ellipsis (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Ellipsis_(computer...

    Perl and Ruby overload the ".." operator in scalar context as a flip-flop operator - a stateful bistable Boolean test, roughly equivalent to "true while x but not yet y", similarly to the "," operator in sed and AWK. [1] GNU C compatible compilers have an extension to the C and C++ language to allow case ranges in switch statements:

  8. Perl - Wikipedia

    en.wikipedia.org/wiki/Perl

    Perl borrows features from other programming languages including C, sh, AWK, and sed. [1] It provides text processing facilities without the arbitrary data-length limits of many contemporary Unix command line tools. [16] Perl is a highly expressive programming language: source code for a given algorithm can be short and highly compressible. [17 ...

  9. Help:Switch parser function - Wikipedia

    en.wikipedia.org/wiki/Help:Switch_parser_function

    The switch parser function, coded as "#switch", selects the first matching branch in a list of choices, acting as a case statement. Each branch can be a value , an expression ( calculation ), or a template call, [ 1 ] evaluated and compared to match the value of the switch.