Chapter 1, Closures and Scope, grandparents example

[zackgao]

function (x) {
return function (x, y) {
return function (w, z) {
return function (w) {
return x + y + z
}
}
}
}

"When evaluating x + y + z, JavaScript will find x and y in the great-grandparent scope and z in the parent scope. The x in the great-great-grandparent scope is ignored, as are both ws. When a variable has the same name as an ancestor environment’s binding, it is said to shadow the ancestor."

Above should be grandparent instead of great-grandparent and great-grandparent instead of great-great-grandparent.