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Perl wantarray Function
Description
This function returns true if the context of the currently executing function is looking for a list value. Returns false in a scalar context.
Syntax
Following is the simple syntax for this function −
wantarray
Return Value
This function returns undef if no context and 0 if lvalue expects a scalar.
Example
Following is the example code showing its basic usage −
#!/usr/bin/perl -w sub foo { return(wantarray() ? qw(A, B, C) : '1'); } $result = foo(); # scalar context @result = foo(); # array context print("foo() in a scalar context: $result\n"); print("foo() in an array context: @result\n");
When above code is executed, it produces the following result −
foo() in a scalar context: 1 foo() in an array context: A, B, C
perl_function_references.htm
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