JavaScript DOM Scripting By Example Improving the Application Code Refactor 1: Create List Items

Label outside the scope

Hi, I don't understand this part. Why do we have to return it in the function to work ?

In the video: "with appendToLI, I can't append the checkbox to it. Well that's because the label is being created outside the scope beyond the checkbox's reach. So if appendToLI returned the label once it was finished, you could call appendChild on it and pass in the checkbox."

1 Answer

Steven Parker
Steven Parker
177,602 Points

Normally, any variables created in a function go out of scope and are disposed the moment the function ends. However, any value that is returned by the function is available to the caller.