Code-Block Level Scope
A variable declared within a loop or any block within brackets has the code-block level scope. A variable declared within a loop or code block cannot be accessed outside of it, whereas a variable declared outside of the loop can be accessible within the loop.
In the above example, a variable
A variable must be declared outside of the code block to make it accessible to outside code.
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A variable declared within a loop or any block within brackets has the code-block level scope. A variable declared within a loop or code block cannot be accessed outside of it, whereas a variable declared outside of the loop can be accessible within the loop.
In the above example, a variable
i declared within a for loop. So, it can only be accessed within the for loop block and cannot be accessed outside for loop. In the same way, x is declared within the if block, so it can only be accessed in that block but not outside of it.A variable must be declared outside of the code block to make it accessible to outside code.
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