What is hoisting in Java?
Hoisting in Java refers to the behavior where variable and function declarations are moved to the top of their containing scope during compilation.
Can you give me an example of hoisting?
Sure! For instance, if you declare a variable using var
and then try to use it before its declaration, it will be undefined
instead of throwing an error.
What happens with let
and const
?
Unlike var
, variables declared with let
and const
are not initialized until their declaration is evaluated, leading to a ReferenceError if accessed before.
Is hoisting the same in all JavaScript environments?
Yes, hoisting behavior is consistent across all JavaScript environments, including browsers and Node.js.
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