JavaScript file upload size validation

Question

Is there any way to check file size before uploading it using JavaScript?

Answer 1

If you set the Ie 'Document Mode' to 'Standards' you can use the simple javascript 'size' method to get the uploaded file's size.

Set the Ie 'Document Mode' to 'Standards':

Than, use the 'size' javascript method to get the uploaded file's size:

It works for me.