What's the difference between ( | ) and ( || )?

Question

What\'s the difference between | and || in Javascript?

Furthermore, what\'s the difference between & and &&<

Answer 1

• & is the bitwise AND operator

• | is the bitwise OR operator

• && is the logical AND operator

• || is the logical OR operator

The difference is that logical operators only consider each input at face value, treating them as whole, while bitwise operators work at the bit level:

var thetruth = false;
var therest = true;

var theuniverse = thetruth && therest; //false
var theparallel = thetruth && thetruth; //true

var theindifferent = thetruth || therest; //true
var theideal = thetruth || thetruth; // false

var thematrix = 5346908590;
var mrsmith = 2354656767;

var theoracle = thematrix & mrsmith; //202445230
var theone = thematrix | mrsmith; //7499120127