scalar - Perldoc Browser

The Perl documentation is maintained by the Perl 5 Porters in the development of Perl. Please contact them via the Perl issue tracker, the mailing list, or IRC ... PerldocBrowser 5.36.0 Latest 5.36.0 5.34.1 5.34.0 5.32.1 5.32.0 5.30.3 5.30.2 5.30.1 5.30.0 5.28.3 5.28.2 5.28.1 5.28.0 5.26.3 5.26.2 5.26.1 5.26.0 5.24.4 5.24.3 5.24.2 5.24.1 5.24.0 5.22.4 5.22.3 5.22.2 5.22.1 5.22.0 5.20.3 5.20.2 5.20.1 5.20.0 5.18.4 5.18.3 5.18.2 5.18.1 5.18.0 5.16.3 5.16.2 5.16.1 5.16.0 5.14.4 5.14.3 5.14.2 5.14.1 5.14.0 5.12.5 5.12.4 5.12.3 5.12.2 5.12.1 5.12.0 5.10.1 5.10.0 5.8.9 5.8.8 5.8.7 5.8.6 5.8.5 5.8.4 5.8.3 5.8.2 5.8.1 5.8.0 5.6.2 5.6.1 5.6.0 5.005_04 5.005_03 5.005_02 5.005_01 5.005 Dev blead 5.37.4 5.37.3 5.37.2 5.37.1 5.37.0 5.36.0-RC3 5.36.0-RC2 5.35.11 5.35.10 5.35.9 5.35.8 5.35.7 5.35.6 5.35.5 5.35.4 5.35.3 5.35.2 5.35.1 5.35.0 5.33.9 5.33.8 5.33.7 5.33.6 5.33.5 5.33.4 5.33.3 5.33.2 5.33.1 5.33.0 Documentation Perl Intro Tutorials FAQs Reference Operators Functions Variables Modules Utilities Community History Expand functions /scalar (source, CPAN) #scalarEXPR ForcesEXPRtobeinterpretedinscalarcontextandreturnsthevalueofEXPR. my@counts=(scalar@a,scalar@b,scalar@c); Thereisnoequivalentoperatortoforceanexpressiontobeinterpolatedinlistcontextbecauseinpractice,thisisneverneeded.Ifyoureallywantedtodoso,however,youcouldusetheconstruction@{[(someexpression)]},butusuallyasimple(someexpression)suffices. Becausescalarisaunaryoperator,ifyouaccidentallyuseaparenthesizedlistfortheEXPR,thisbehavesasascalarcommaexpression,evaluatingallbutthelastelementinvoidcontextandreturningthefinalelementevaluatedinscalarcontext.Thisisseldomwhatyouwant. Thefollowingsinglestatement: printuc(scalar(foo(),$bar)),$baz; isthemoralequivalentofthesetwo: foo(); print(uc($bar),$baz); Seeperlopformoredetailsonunaryoperatorsandthecommaoperator,andperldatafordetailsonevaluatingahashinscalarcontext. PerldocBrowserismaintainedbyDanBook(DBOOK).PleasecontacthimviatheGitHubissuetrackeroremailregardinganyissueswiththesiteitself,search,orrenderingofdocumentation. ThePerldocumentationismaintainedbythePerl5PortersinthedevelopmentofPerl.PleasecontactthemviathePerlissuetracker,themailinglist,orIRCtoreportanyissueswiththecontentsorformatofthedocumentation.