FileReader and new DataStream

emreaktas1 — Thu, 22 Aug 2024 10:37:45 GMT

Hello, I am having trouble reading ncz files.
I am not sure where I made a mistake.
I am getting an error in DataStream.
I would be very happy if you could help me.

function ncz_alma(){

sayfamesajlari.innerHTML=""

// sayfamesajlari.style.backgroundColor="black"

sayfamesajlari.innerHTML="Lütfen Yüklemek İstediğiniz Ncz Dosyasını Seçiniz ve Dosya isminde Türkçe ve Özel Karakterler Kullanmayınız.\n"

var kmlal = document.createElement("input")

kmlal.innerText="Ncz"

kmlal.setAttribute("type","file")

kmlal.setAttribute("id","nczalma")

var submittt=document.createElement("input")

submittt.innerText="Al"

submittt.setAttribute("type","submit")

// document.createElement()

submittt.onclick=function(){

if (document.getElementById("nczalma").files.length!==0){

var file =document.getElementById("nczalma").files[0]

sayfamesajlari.innerHTML=""

var nczreader = new FileReader()

sayfamesajlari.innerText="Okunuyor..."

var progress_bar = document.createElement("div")

progress_bar.style.height="20px"

progress_bar.style.width="100%"

progress_bar.style.backgroundColor="lightgray"

progress_bar.setAttribute("class","progress-bar")

var bar_cubuk = document.createElement("div")

bar_cubuk.setAttribute("id","progress")

bar_cubuk.style.height="100%"

bar_cubuk.style.width="1%"

bar_cubuk.style.backgroundColor="blue"

bar_cubuk.style.transition="width 0.2s"

progress_bar.appendChild(bar_cubuk)

sayfamesajlari.appendChild(progress_bar)

nczreader.onload =async function(e){

var buffer = nczreader.result

// ************

// DataStream error

// ************

window.DataStream = null;

var dataview = new DataStream(buffer)

var binaryuzunluk=dataview.byteLength

console.log("Binary Uzunluğu",dataview.byteLength)

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FileReader and new DataStream