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!==two values are compared for strict inequality.
Both comparisons result in
var c1 = 'rose' !== 'Rose'; var c2 = 10 !== '10';
true. The first one, because the two strings differ in upper and lower case. The second, because the two values differ in type.
unequalthat checks 3 values for strict inequality. The function should return
trueif all three parameters are strict unequal. Otherwise
false. The call
unequal(1, 2, 3)should return
unequal(1, 1, 2)should return