[JavaScript] File path 이미지 미리보기( fakepath )

HTML

<input type="file" name="image" onchange="loadImg( this, 'viewimg' )"/>
<img src="about:blank" name="viewimg" id="previewimg" alt="">

JAVASCRIPT

function loadImg( img, viewimg) {

    if ( img.files[0] ) {
        var reader = new FileReader();
        reader.onload = function (e) {
           
            $( '#'+ viewimg ).attr('src', e.target.result );
        }
        reader.readAsDataURL( img.files[0] );
    }
}