Get image size (in bytes) before uploading

Question

Javascript can get file size (size in bytes)?

I need before uploading image, understand what is image size, its possible ?

Answer 1

Get a handle to the <input type="file"> element, then:

var file = fileinput.files && fileinput.files[0];
if( file ) {
     console.log( file.size, file.type );
}
else if( !("files" in fileInput)) {
    // not supported
}
else {
    //No file selected
}