What is the scope of local variables declared inside a JavaScript function?

Local variables declared inside a JavaScript function have a scope that is limited to that specific function. This means that they are only accessible and can be used within the function where they are defined. Once the function execution is completed, these local variables are no longer accessible, and any attempt to reference them outside the function will result in an error.

This scope limitation helps in encapsulating functionality and prevents variable naming conflicts, as local variable names can be reused in different functions without affecting one another. The encapsulation of variables also supports better modular designs and code maintainability by ensuring that the internal workings of functions do not inadvertently interfere with one another.