Logic operators

There are three logical operators in JavaScript. It are "not","and","or". Let's see example.

!true; // False
!false; // True
false || true; // True
false && true;// False

Comparison operators

In parts of the previous file you've already seen some of these operators, and certainly understand their meaning but in anyway. There are 8 comparison operators in JavaScript.

And for example:

5 == 5; //True
5 === '5'; //False
5 != 3; //True
5 !== '3'; //True
5 > 3; //True
5 < 3; //False
5 <= 5; //True
5 >= 3; //True

XOR Hack

In JavaScript there is no operator XOR (also named Exclusive OR). But we can write function that use bitwise XOR and return booleadn XOR of two arguments.

xor = function(a,b){
  return Boolean(a ^ b)
}

And let's use it.

xor(true,false); //True
xor(true,true); //False
xor(false,false); //False

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