+    // Addition
-    // Subtraction
*    // Multiplication
/    // Division
++   // Increment
--   // Decrement
**   // Exponentiation
%    // Modulus

&&  // and, if both are true
||  // or, if either are true
!   // not, truthy returns false, falsy returns true 

=    // x = y  |same as| x = y
+=   // x += y |same as| x = x + y
-=   // x -= y |same as| x = x - y
*=   // x *= y |same as| x = x * y
/=   // x /= y |same as| x = x / y
%=   // x %= y |same as| x = x %= y
**=  // x **= y|same as| x = x ** y

typeof operand = type of data
object instanceof constructor = true // instanceof

==   // equal to
===  // equal value and equal type
!=   // not equal
!==  // not equal value or not equal type
>    // greater than 
<    // less than
>=   // greater than or equal to
<=   // less than or equal to
?    // ternary operator | if true ? execute : false |