html
Unlike other form controls such as textbox, checkbox or radio button, you'll find it hard to customize file upload control. The look and feel of this control is totally managed by the rendering browser. A simple customization like changing the button color or remove the text "Choose
rails
Every Rails developers might be already familiar with data-confirm attribute for a link. It is used to ask for user confirmation before executing the action on behalf of user. Here is one example <%= link_to "Delete", post_path(post), method: :delete, confirm: "Are you sure?"
html
When working with elements in jQuery, you might need to get width/height of certain invisible DOM elements. By default, jQuery would return 0 in this case because it can not calculate the actual height() of that element. In order to solve this problem, I take advantage of jquery.actual