Challenge: Global vs Local Scope in Functions

It is possible to have both local and global variables with the same name. When you do this, the local variable takes precedence over the global variable.

In this example:

var someVar = "Hat";
function myFun() {
  var someVar = "Head";
  return someVar;
}

The function myFun will return "Head" because the local version of the variable is present.