Perl Variable Contexts

Variable Contexts

Perl data types can be treated in different ways dependin g on the context in which they
are accessed.

Scalar	Accessing data items as scalar values. In the case of lists and hashes, $foo[0] and $foo{key}, respectively. Scalars also have numeric, string, and don’t-care contexts to cover situations in which conversions need to be done.
List	Treating lists and hashes as atomic objects
Boolean	Used in situations where an expression is evaluated as true or false. (Numeric: 0=false; String: null=false, Other: undef=false)
Void	Does not care (or want to care) about r eturn value
Interpolative	Takes place inside quotes or things that act like quotes

Conclusion

In this page (written and validated by A. Gawali) you learned about Perl Variable Contexts . What's Next? If you are interested in completing Perl tutorial, your next topic will be learning about: Perl Special Variables defaults.

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