jQuery addClass example

Change class name on click in jQuery

by Kabir Hossain

HTML

<form>
    <label>User Image</label>
     <input type="file" name="user_image"> <br />
     <img id="user_image" style="width:70px;" />
     <hr />
    <label>User Signature</label>
     <input type="file" name="user_signature"> <br />
     <img id="user_signature" style="width:70px;" />
    </form>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#banner-message {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  font-size: 25px;
  text-align: center;
  transition: all 0.2s;
  margin: 0 auto;
  width: 300px;
}

button {
  background: #0084ff;
  border: none;
  border-radius: 5px;
  padding: 8px 14px;
  font-size: 15px;
  color: #fff;
}

#banner-message.alt {
  background: #0084ff;
  color: #fff;
  margin-top: 40px;
  width: 200px;
}

#banner-message.alt button {
  background: #fff;
  color: #000;
}

JavaScript

$("input[type=file]").change(function() {
        readURL(this);
        filename = this.files[0].name;
        console.log(filename);
      });
      
      
      // image file upload preview
      function readURL(input) {
        if (input.files && input.files[0]) {
          var reader = new FileReader();
          reader.onload = function (e) {
            $('#' + input.name).attr('src', reader.result);
          }
          reader.readAsDataURL(input.files[0]);
        }
      }