hoge

preview_image.js

$(document).on('turbolinks:load', function() {
  $(function (){
    $('#prototype_captured_images_attributes_0_content').on('change',function previewFile(e) {
      var preview = $("#selected_image")
      var file    = e.target.files[0];
      var reader  = new FileReader();

      reader.onloadend = function () {
        preview.src = reader.result;
        $("#selected_image").attr("src", preview.src);
      }

      if (file) {
        reader.readAsDataURL(file);
      } else {
        preview.src = "";
      }
    });
  });
  $(function(){
    $('.cover-image-upload').on('mouseenter', function(){
      $(this).css("background-color","rgba(255, 175, 45, 0.4)")
    })
    $('.cover-image-upload').on('mouseleave', function(){
      $(this).css("background-color","#ffffff")
    })
  });
  $(function(){
    $('#prototype_captured_images_attributes_0_content').on('change', function(){
      $('#show_selected_image').remove();
    }
  })
});