What is variable shadowing in programming?

What is variable shadowing in programming?

Variable shadowing occurs when a variable declared within a certain scope has the same name as a variable in an outer scope.

Can you give me an example of variable shadowing?

Sure! In JavaScript, if you declare a variable 'x' in a function, and there's also a variable 'x' outside that function, the inner 'x' shadows the outer one.

What problems can variable shadowing cause?

It can lead to confusion and bugs, as the inner variable may unintentionally hide the outer variable, making code harder to read.

How can I avoid variable shadowing?

You can avoid it by using unique variable names or by limiting the scope of your variables.