1a * (b + c) // grouping
2person.age // member
3person[age] // member
4!(a == b) // logical not
5a != b // not equal
6typeof a // type (number, object, function...)
7x << 2 x >> 3 // minary shifting
8a = b // assignment
9a == b // equals
10a != b // unequal
11a === b // strict equal
12a !== b // strict unequal
13a < b a > b // less and greater than
14a <= b a >= b // less or equal, greater or eq
15a += b // a = a + b (works with - * %...)
16a && b // logical and
17a || b // logical or
18