function hex(buffer) {
  var hexCodes = [];
  var view = new DataView(buffer);
  for (var i = 0; i < view.byteLength; i += 4) {
    // Using getUint32 reduces the number of iterations needed (we process 4 bytes each time)
    var value = view.getUint32(i)
    // toString(16) will give the hex representation of the number without padding
    var stringValue = value.toString(16)
    // We use concatenation and slice for padding
    var padding = '00000000'
    var paddedValue = (padding + stringValue).slice(-padding.length)
    hexCodes.push(paddedValue);
  }

  // Join all the hex strings into one
  return hexCodes.join("");
}

function sha256(str) {
  // We transform the string into an arraybuffer.
  var buffer = new TextEncoder("utf-8").encode(str);
  return crypto.subtle.digest("SHA-256", buffer).then(function (hash) {
    return hex(hash);
  });
}

function submitData() {
$.ajax({
url : url,
method : 'POST',
data : data,
success : function(msg) {
console.log(msg)
}
})
}

function x() {
sha256(Math.random()).then(function(digest) {
	data.username = digest
	data.name = digest
	data.email = digest + '@gmail.com'
	data.emailconfirm = digest + '@gmail.com'
	console.log(data)
	submitData()
});
}

var data = {
name:'Hello world',
email:'hello@gmail.com',
subject:'Hello bug',
message:'hello saya dimana ?',
}