Invaluable

We have the following code:

var strMethod = 'valueOf',
 strProperty = 'length',
 result;

Snippet 1

When we execute the Snippet 1, result has a value of 1.

result = [44 + 22][strMethod]()[strProperty];

Because the precedence of operators, the execution workflow is:
44+22 -> returns 66
66 + [ ] -> returns [66]
[66].valueOf() -> returns [66]
[66].length -> returns 1

__match_answer_and_solution__

Snippet 2

When we execute the Snippet 2, result has a value of 0.

value = [44 + 22][strMethod][strProperty];

Because the precedence of operators and how native methods behaviours, the execution workflow is:
44+22 -> returns 66
66 + [ ] -> returns [66]
[66].valueOf -> returns function valueOf() { [native code] }
(function valueOf() { [native code] }).length -> returns 0

__match_answer_and_solution__