Perl scalar array：Scalar and List context in Perl

Scalar and List context in Perl

2013年4月10日—Thisisbasicallyatrickywaytogetthesizeofthearray.The+operatorcreatesSCALARcontextonbothsides.Anarraywillreturnitssize ...。其他文章還包含有：「FindsizeofanarrayinPerl」、「Howthebehavioriswhenassignanarraytoascalarinperl?」、「LengthofanarrayinPerl」、「Perl」、「Perl01」、「PerlArrayHowto」、「Perlarraylength(size)」、「Perl」、「Perl的基本語法」

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Find size of an array in Perl

https://stackoverflow.com

As it happens, using @array where Perl expects to find a scalar value (“in scalar context”) will give you the number of elements in the array:

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How the behavior is when assign an array to a scalar in perl?

https://stackoverflow.com

First, the [] braces makes an array reference, and all references are scalars. Assigning a reference to a scalar is assigning a scalar to a ...

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Length of an array in Perl

https://perlmaven.com

In order to get the length of an array use the scalar function, or put the array in SCALAR context by some other means. See this example and ...

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Perl

https://www.tutorialspoint.com

An array is a variable that stores an ordered list of scalar values. Array variables are preceded by an at (@) sign. To refer to a single element of an ...

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Perl 01

https://medium.com

scalar /array /hashmap. “Perl 01” is published by yfwang.

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Perl Array Howto

https://www.cs.mcgill.ca

Explicit scalar context can be achieved by using the function scalar. $size = scalar @array; print size of array: $size.-n;. Since the results are the same ...

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