jQuery文件上传预览/删除图像

Question

You can find the working file at jsfiddle

Image preview and remove function was working early, But I did some changes in the html code because of some libraries. So now image preview is not working because of parent class calling issue in Jquery. Please check the working code and help me to solve it. Im using multiple input with same name array. So I want to display the image in next div as I mentioned in the html code. I knew the problem is from jquery. But I couldn't fix it. Please help.

function readURL() {
     var $input = $(this);
     if (this.files && this.files[0]) {
        var reader = new FileReader();
        reader.onload = function (e) {
           reset($input.next('.delbtn'), true);
           $input.next('.portimg').attr('src', e.target.result).show();
           $input.after('<input type="button" class="delbtn removebtn" value="remove">');
        }
           reader.readAsDataURL(this.files[0]);
      }
    }
    $(".fileUpload").change(readURL);
    $("form").on('click', '.delbtn', function (e) {
        reset($(this));
    });

function reset(elm, prserveFileName) {
    if (elm && elm.length > 0) {
       var $input = elm;
       $input.next('.portimg').attr('src', '').hide();
       if (!prserveFileName) {
         $input.prev('.fileUpload').val("");
       }
         elm.remove();
       }
}

html code

<form> <!--working code but it not needed now.-->
  <div class="form-group hirehide is-empty is-fileinput width100">
    <div class=socialmediaside2>
        <input class=fileUpload accept="image/jpeg, image/jpg" name=profilepic type=file value="Choose a file"> 
        <img alt="your image" class=portimg src=#>
        <div class=input-group>
            <input class=form-control id=uploadre placeholder="Please select your profile picture" readonly>
            <span class="input-group-btn input-group-sm"><button class="btn btn-fab btn-fab-mini"type=button><i class=material-icons>attach_file</i></button></span>
        </div>
    </div>
</div> 
<!--below code is not working. I need this to be work-->
<div class="form-group hirehide is-empty is-fileinput width100">
    <div class=socialmediaside2>
        <input class=fileUpload accept="image/jpeg, image/jpg" name=profilepic type=file value="Choose a file">
        <div class=input-group>
            <input class=form-control id=uploadre placeholder="Please select your profile picture" readonly>
            <span class="input-group-btn input-group-sm"><button class="btn btn-fab btn-fab-mini"type=button><i class=material-icons>attach_file</i></button></span>
        </div>
    </div>
</div>
<div class=upload-demo>
    <div class=upload-demo-wrap><img alt="your image" class=portimg src=#></div>
</div>

Answer 1

Please try this version:

HTML:

<form>
<div>
<div class="form-group hirehide is-empty is-fileinput width100">
    <div class=socialmediaside2>
        <input class=fileUpload accept="image/jpeg, image/jpg" name=profilepic[] type=file value="Choose a file">
        <div class=input-group>
            <input class=form-control id=uploadre placeholder="Please select your profile picture" readonly>
            <span class="input-group-btn input-group-sm"><button class="btn btn-fab btn-fab-mini"type=button><i class=material-icons>attach_file</i></button></span>
        </div>
    </div>
</div>
<div class=upload-demo>
    <div class=upload-demo-wrap><img alt="your image" class=portimg src=#></div>
</div>
</div>

<div>
<div class="form-group hirehide is-empty is-fileinput width100">
    <div class=socialmediaside2>
        <input class=fileUpload accept="image/jpeg, image/jpg" name=profilepic[] type=file value="Choose a file">
        <div class=input-group>
            <input class=form-control id=uploadre placeholder="Please select your profile picture" readonly>
            <span class="input-group-btn input-group-sm"><button class="btn btn-fab btn-fab-mini"type=button><i class=material-icons>attach_file</i></button></span>
        </div>
    </div>
</div>
<div class=upload-demo>
    <div class=upload-demo-wrap><img alt="your image" class=portimg src=#></div>
</div>
</div>

<div>
<div class="form-group hirehide is-empty is-fileinput width100">
    <div class=socialmediaside2>
        <input class=fileUpload accept="image/jpeg, image/jpg" name=profilepic[] type=file value="Choose a file">
        <div class=input-group>
            <input class=form-control id=uploadre placeholder="Please select your profile picture" readonly>
            <span class="input-group-btn input-group-sm"><button class="btn btn-fab btn-fab-mini"type=button><i class=material-icons>attach_file</i></button></span>
        </div>
    </div>
</div>
<div class=upload-demo>
    <div class=upload-demo-wrap><img alt="your image" class=portimg src=#></div>
</div>
</div>

</form>

JS:

function readURL() {
    var $input = $(this);
    var $newinput =  $(this).parent().parent().parent().find('.portimg ');
    if (this.files && this.files[0]) {
        var reader = new FileReader();
        reader.onload = function (e) {
            reset($newinput.next('.delbtn'), true);
            $newinput.attr('src', e.target.result).show();
            $newinput.after('<input type="button" class="delbtn removebtn" value="remove">');
        }
        reader.readAsDataURL(this.files[0]);
    }
}
$(".fileUpload").change(readURL);
$("form").on('click', '.delbtn', function (e) {
    reset($(this));
});

function reset(elm, prserveFileName) {
    if (elm && elm.length > 0) {
        var $input = elm;
        $input.prev('.portimg').attr('src', '').hide();
        if (!prserveFileName) {
            $($input).parent().parent().parent().find('input.fileUpload ').val("");
            //input.fileUpload and input#uploadre both need to empty values for particular div
        }
        elm.remove();
    }
}

JSFiddle: https://jsfiddle.net/hxwmL1px/4/

Answer 2

Just add the below html code. Check Working Demo now check updated link below in comments.

 <img alt="your image" class=portimg src=#>