Is there any ruby way to show thumbnail preview of image before upload?
Using below javascript, I can achieve this
window.URL = window.URL || window.webkitURL;
var fileElem = document.getElementById("fileElem");
function handleFiles(files) { var img = document.getElementById("image-preview");
if (!files.length) { img.src = "/img/default-profile-image.png"; } else { img.src = window.URL.createObjectURL(files[0]); img.height = 60; img.onload = function(e) { window.URL.revokeObjectURL(this.src); } }
}
but I want to keep the thumbnail image in the case of validation fails.
Please help me....
Thanks in advance, Avantec