Question

How to convert a hex to a byte array in TypeScript

Answer 1

function hexToBytes(hex: string): number[] {
    const bytes: number[] = [];

    for (let ch = 0; ch < hex.length; ch += 2) {
        bytes.push(parseInt(hex.substring(ch, ch + 2), 16));
    }

    return bytes;
}

const hexString: string = "1A2D3E4F";
const byteArray: number[] = hexToBytes(hexString);

console.log(byteArray);

  
  
/*
run:
  
[26, 45, 62, 79] 
  
*/

 

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