Test case 0 20 20 Test case 1 10 10 Test case 2 In getter 10 In getter 10 Test case 3 undefined 20 Test case 4 undefined undefined Test case 5 10 undefined Test case 6 25 In getter 10 Test case 7 In getter 10 In getter 10 Test case 8 10 In getter 10 10 In getter 10 Test case 9 In getter 10 In getter 10 Test case 10 In getter 10 10 In getter 10 Test case 11 In getter NaN In getter NaN