Hex String To Uint8 Array - Node.js Data Type

Node.js examples for Data Type:Uint8Array

  1. HOME
  2. Node.js
  3. Data Type
  4. Uint8Array

Description

Hex String To Uint8 Array

Demo Code


function hexStringToUint8Array(hexString){
  if (hexString.length % 2 !== 0){
    throw "Invalid hexString";
  }/*from  w w w.  j  av a 2s  . c  o  m*/
  var arrayBuffer = new Uint8Array(hexString.length / 2);

  for (var i = 0; i < hexString.length; i += 2) {
    var byteValue = parseInt(hexString.substr(i, 2), 16);
    if (isNaN(byteValue)){
      throw "Invalid hexString";
    }
    arrayBuffer[i/2] = byteValue;
  }

  return arrayBuffer;
}

Related Tutorials