Get File Size in Bytes in Java Script

Question

I am validating the size of the attached file on my page before uploading using the following code:

var tamanhoArquivo = parseInt(document.getElementById("documento").files[0].size);
        if(tamanhoArquivo > 2097152){ //MAX_FILE_SIZE = 2097152 Bytes
            alert("TAMANHO DO ARQUIVO EXCEDE O PERMITIDO (2MB)!");
            return false;
        }

This validation is working perfectly in all browsers except for version 8 of IE, where it says "Unable to get the '0' property of indefinite or null reference".

Any suggestions for size validation also in IE 8?

Answer 1

Internet Explorer 8 does not support Multiple Files. Only IE 10 on accepts. Documentation. That is why you are giving error when trying to access the position 0.

No way to grab, using javascript only, the size of the file in IE 8 or IE 9.

See the Browsers that can use File Api.