Salesforce Developer JavaScript-Developer-I Question # 49 Topic 6 Discussion

Refer to the following code:

function test (val) {

If (val === undefined) {

return ‘Undefined values!’ ;

}

if (val === null) {

return ‘Null value!’;

}

return val;

}

Let x;

test(x);

What is returned by the function call on line 13?