Variables

 Local variable.

Variables declared inside a scope are not visible (that is, accessible) to code that is defined outside that scope. Thus, when you declare a variable within a scope, you are localizing that variable and protecting it

from unauthorized access and/or modification. A variable declared within a block is called a local variable.

Objects declared in the outer scope will be visible to code within the inner scope. However, the reverse is not true.

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Изображение
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