How to get id element of the list?

Sharepoint 2013
How to recover a document library element id?

var file;
var fileCreateInfo;

$(document).ready(function()  
{
    fileInput = $("#getFile");  
    SP.SOD.executeFunc('sp.js', 'SP.ClientContext', registerClick);  
});  

function registerClick()  
{  
    //Register File Upload Click Event  
    $("#addFileButton").click(CreateFile);  
}

function CreateFile()
{
    // Ensure the HTML5 FileReader API is supported
    if (window.FileReader)
    {
        input = document.getElementById("getFile");

        if (input)
        {
            file = input.files(0);
            fr = new FileReader();
            fr.onload = receivedBinary;
            fr.readAsDataURL(file);
        }
    }
    else
    {
        alert("The HTML5 FileSystem APIs are not fully supported in this browser.");
    }
}

// Callback function for onload event of FileReader
function receivedBinary()
{

    var clientContext = new SP.ClientContext('http://servicosda.metroweb.sp.gov.br//');
    this.oWebsite = clientContext.get_web();
    clientContext.load(this.oWebsite); 
    var list = this.oWebsite.get_lists().getByTitle("Cadastro de Serviços da GOP"); 

    fileCreateInfo = new SP.FileCreationInformation();
    fileCreateInfo.set_url(file.name);
    fileCreateInfo.set_overwrite(true);
    fileCreateInfo.set_content(new SP.Base64EncodedByteArray());

    // Read the binary contents of the base 64 data URL into a Uint8Array
    // Append the contents of this array to the SP.FileCreationInformation
    var arr = convertDataURIToBinary(this.result);
    for (var i = 0; i < arr.length; ++i)
    {
        fileCreateInfo.get_content().append(arr(i));
    }

    // Upload the file to the root folder of the document library
    this.newFile = list.get_rootFolder().get_files().add(fileCreateInfo);

    clientContext.load(this.newFile,f => f.ListItemAllFields);

    clientContext.ExecuteQuery();
    //Print List Item Id
    Console.WriteLine("List Item Id: {0}", this.newFile.ListItemAllFields.Id);

    clientContext.executeQueryAsync(onSuccess, onFailure);
}

function onSuccess()
{
    // File successfully uploaded
    alert("Success!");

}

function onFailure()
{
    // Error occurred
    alert("Request failed: " + arguments(1).get_message());
    console.log("Request failed: " + arguments(1).get_message());
}

// Utility function to remove base64 URL prefix and store base64-encoded string in a Uint8Array
// Courtesy: https://gist.github.com/borismus/1032746
function convertDataURIToBinary(dataURI)
{
    var BASE64_MARKER = ';base64,';
    var base64Index = dataURI.indexOf(BASE64_MARKER) + BASE64_MARKER.length;
    var base64 = dataURI.substring(base64Index);
    var raw = window.atob(base64);
    var rawLength = raw.length;
    var array = new Uint8Array(new ArrayBuffer(rawLength));

    for (i = 0; i < rawLength; i++)
    {
        array(i) = raw.charCodeAt(i);
    }
    return array;
}