Types of Scope I
Learn about the scope and its types in Perl.
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Everything with a name in Perl (a variable, a function, a filehandle, a class) has a scope. This scope governs the lifespan and visibility of these entities. Scoping helps enforce encapsulation—keeping related concepts together and preventing their details from leaking.
Lexical scope
Lexical scope is the scope apparent to the readers of a program. Any block delimited by curly braces creates a new scope: a bare block, the block of a loop construct, the block of a subdeclaration, an eval block, a package block, or any other ...