Question

How to use bitwise AND (&) in JavaScript

Answer 1

const x = 6;        // 00000000000000000000000000000110
const y = 3;        // 00000000000000000000000000000011

console.log(x & y); // 00000000000000000000000000000010



/*
run:

2 

*/

 

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Answer 2

 function dec2bin(dec) {
      return (dec >>> 0).toString(2);
}

const x = 6;        // 00000000000000000000000000000110
const y = 7;        // 00000000000000000000000000000111

console.log(x & y); // 00000000000000000000000000000110


console.log(6, dec2bin(x));
console.log(7, dec2bin(y));
console.log("x & y", dec2bin(x & y));




/*
run:

6
6, "110"
7, "111"
"x & y", "110"

*/

 

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