shift - Perldoc Browser

Starting with Perl 5.14, an experimental feature allowed shift to take a scalar expression. This experiment has been deemed unsuccessful, and was removed as ... 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 /shift (source, CPAN) #shiftARRAY #shift Shiftsthefirstvalueofthearrayoffandreturnsit,shorteningthearrayby1andmovingeverythingdown.Iftherearenoelementsinthearray,returnstheundefinedvalue.IfARRAYisomitted,shiftsthe@_arraywithinthelexicalscopeofsubroutinesandformats,andthe@ARGVarrayoutsideasubroutineandalsowithinthelexicalscopesestablishedbytheevalSTRING,BEGIN{},INIT{},CHECK{},UNITCHECK{},andEND{}constructs. StartingwithPerl5.14,anexperimentalfeatureallowedshifttotakeascalarexpression.Thisexperimenthasbeendeemedunsuccessful,andwasremovedasofPerl5.24. Seealsounshift,push,andpop.shiftandunshiftdothesamethingtotheleftendofanarraythatpopandpushdototherightend. PerldocBrowserismaintainedbyDanBook(DBOOK).PleasecontacthimviatheGitHubissuetrackeroremailregardinganyissueswiththesiteitself,search,orrenderingofdocumentation. ThePerldocumentationismaintainedbythePerl5PortersinthedevelopmentofPerl.PleasecontactthemviathePerlissuetracker,themailinglist,orIRCtoreportanyissueswiththecontentsorformatofthedocumentation.