Unable to preview same image using Javascript Php-CodePudding

I am working with php and javascript,Right now i am trying to display "image preview" before upload,I can cancel image and can select another image after display "preview",But whenever i cancel any image(via click on "close" button ) and then select same image then "preview" not displaying ,In other words if i select another image after cancecl then everything is working fine but if i cancel and select same image again then "image preview" not displaying Here is my html code

<span ><img id="thumb" src="" /></span>
<span >
<button type="button" id="closebtn" style="display:none;"><span aria-hidden="true">×</span>
</button>
</span>
                    
<ul >
   <li ><a href="#"> <img src="assets/social/images/media_pt_att_xt.svg" alt="img"></a>
</li> 
    <input type="file" id="my_file" name="file" onchange="preview()" style="display: none;"/>
</a></li> 
</ul>

Here is my script code for "select image" and "preview image"

<script>
$('.new_Btn').click(function() {
    $('#my_file').click();
});

$('#closebtn').click(function() {
     $('#thumb').attr('src', '');
     $('#closebtn').hide('');
});

function preview() {
    $('#thumb').show('');
    $('#closebtn').show('');
   thumb.src=URL.createObjectURL(event.target.files[0]);
}
</script>

CodePudding user response：

Seems like you need to reset the value of file input every time you click on 'x' because your preview() will call only on value change of file input.

$('#closebtn').click(function () {
    $('#thumb').attr('src', '');
    $('#closebtn').hide('');
    $('#my_file').val('');
});