x undefined? true+
−
TypeError: Cannot read property "foo" from undefined+
−
TypeError: Cannot set property "bar" of undefined+
−
TypeError: Cannot read property "1" from undefined+
−
TypeError: Cannot set property "0" of undefined+
−
TypeError: Cannot read property "func" from undefined+
−
TypeError: Cannot delete property "0" of undefined+
−
TypeError: Cannot delete property "foo" of undefined+
−
TypeError: undefined is not an Object+
−
TypeError: Cannot apply "with" to undefined+
−