Question

How to use AND (&) bitwise operator in JavaScript

Answer 1

var n1 = 9;
var n2 = 2;

document.write(n1 + " = " + n1.toString(2) + "<br />");
document.write(n2 + " = " + n2.toString(2) + "<br />");

var x = n1 & n2;

document.write(x + " = " + x.toString(2) + "<br />");

/*

  1001
& 0010
  ----
  0000
*/ 

/*
run:

9 = 1001
2 = 10
0 = 0

*/

 

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