Question

How to use bitwise AND assignment (&=) in JavaScript

Answer 1

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

let x = 7;        // 00000000000000000000000000000111
const y = 5;      // 00000000000000000000000000000101

console.log(x &= y); // 00000000000000000000000000000101


console.log(5, dec2bin(x));
console.log(5, dec2bin(y));





/*
run:

5
5, "101"
5, "101"

*/

 

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Answer 2

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

let x = 3;        // 00000000000000000000000000000011
const y = 5;      // 00000000000000000000000000000101

console.log(x &= y); // 00000000000000000000000000000001


console.log(1, dec2bin(x));
console.log(5, dec2bin(y));




/*
run:

1
1, "1"
5, "101"

*/

 

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