A.5-5

B.5-10

C.10-10

D.10-5

A.Let x = ('1' + ' 2') == ( 6 * 2);

B.Let x = ('1' + 2) == ( 6 * 2);

C.Let x = (1 + 2) == ( '6' / 2);

D.Let x = (1 + 2 ) == ( 6 / 2);

A.value === Number.NaN

B.Number.isNaN(value)

C.value ! == value

D.Object.is(value, NaN)

E.value == NaN

A.Object.lock()

B.Object.freeze()

C.Object.const()

D.Object.eval()

A.JSON.parse(' " foo " ');

B.JSON.parse ( ' foo ' );

C.JSON.parse( " ' foo ' " );

D.JSON.parse ( " foo " );