Question

How to convert a hex to a byte array in Node.js

Answer 1

function hexToBytes(hex) {
    const byteArray = [];
    
    for (let ch = 0; ch < hex.length; ch += 2) {
        byteArray.push(parseInt(hex.substr(ch, 2), 16));
    }
    
    return byteArray;
}

const hexString = "1B2C3A4F";
const byteArray = hexToBytes(hexString);

console.log(byteArray);



/*
run:

[ 27, 44, 58, 79 ]

*/

 

70+ SQL courses for beginners and professionals