JavaScript Scope and Execution Context

Question

I am trying to understand JavaScript scope rules. What I have read in textbooks and the documentation is confusing.

It seems to me that JavaScript is a statically (o

Answer 1

It always comes down to lexical scoping which is function are executed with its scope chain when it is defined, not when it is invoked.

The anonymous function is defined in the local scope of function changeColor instead of the global scope. Hence when it is executed again, it prints out the color green which is listed in the local scope of function changeColor.