!= is the inverse of the
true if the operands aren't equal.
false will be returned.
1 != '1' // false 1 != 2 // true
In the sample above,
1 != '1' is
false because, a primitive number type is being compared to a
!== is the inverse of the
Will return true if the operands are not equal or if their types do not match.
1 !== '1' // true 1 !== 2 // true 1 !== 1 // false