Convert hex String To Byte Array - Node.js String

Node.js examples for String:Base 64

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Description

Convert hex String To Byte Array

Demo Code


function hexStringToByteArray(hexString) {
    if (hexString.length % 2 !== 0) {
        throw "Must have an even number of hex digits to convert to bytes";
    }/* w w w.  jav  a2 s .  c o  m*/
    var numBytes = hexString.length / 2;
    var byteArray = new Uint8Array(numBytes);
    for (var i=0; i<numBytes; i++) {
        byteArray[i] = parseInt(hexString.substr(i*2, 2), 16);
    }
    return byteArray;
}

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