What is variable shadowing?
An example of an AI chatbot conversation about variable shadowing in programming.
Can you explain what variable shadowing is?
Variable shadowing occurs when a variable in a certain scope has the same name as a variable in an outer scope, effectively 'hiding' the outer variable.
Can you give me an example of variable shadowing?
Sure! In JavaScript, if you have a variable x in the global scope and then declare a variable x inside a function, the function's x shadows the global x.
What problems can variable shadowing cause?
It can lead to confusion and bugs, as it may not be clear which variable is being referenced, especially in larger codebases.
How can I avoid variable shadowing in my code?
You can avoid it by using unique variable names, following naming conventions, or using block scopes like let and const in JavaScript.
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