var reader = new FileReader();
            var fileAsArray = new Uint8Array();
            reader.onload = function(){
            var arrayBuffer = document.getElementById('file').result;
            var array = new Uint8Array(arrayBuffer);
            binaryString = String.fromCharCode.apply(null, array);
            fileAsArray=array;
            console.log(array);
            console.log(fileAsArray);

            }
            var file = reader.readAsArrayBuffer(document.getElementById('file').files[0]);