Exam4Training

What is returned by the function call on line 13?

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?
A . Undefined
B . Line 13 throws an error.
C . ‘Undefined values!’
D . ‘Null value!’

Answer: C

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