ASP .NET CORE MVC, html – choose default image if user didn’t choose any

I want the “Choose file” to be optional. That means if user does not click “Choose file”, the default image (/wwwroot/n-image/NoImage.png) is chosen. “Image” is a string property of Article object.

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<form>
  <div>
    <div class="form-group">
      <label asp-for="Image" class="control-label"></label>
      <br />
      <div class="custom-file">
        <input type="file" asp-for="Image" class="custom-file-input" id="FLFormFIle" />
      </div>
      <span class="text-danger"></span>
      <br />
    </div>

    <img id="FormFilePrv" src="" style="border:1px; top:20px;margin-left:120px;" />
    <div class="form-group">
      <br />
      <input type="submit" value="Utwórz artykuł" class="btn btn-primary" />
    </div>
  </div>
</form>

$(".custom-file-input").on("change", function() {
  var fileName = $(this).val().split("\").pop();
  document.getElementById('FormFilePrv').src = window.URL.createObjectURL(this.files[0])
  $(this).siblings(".custom-file-label").addClass("selected").html(fileName);
})