jquery-placeholder is a simple jQuery plugin that enables form placeholders in browsers that do not support them natively, i.e. IE < 10.

Properties

Works in IE6.
Automatically checks whether the browser natively supports the HTML5 placeholder attribute for input and textarea elements. If this is the case, the plugin won’t do anything. If @placeholder is only supported for input elements, the plugin will leave those alone and apply to textareas exclusively. (This is the case for Safari 4, Opera 11.00, and possibly other browsers.)
Caches the results of its two feature tests in jQuery.fn.placeholder.input and jQuery.fn.placeholder.textarea. For example, if @placeholder is natively supported for input elements, jQuery.fn.placeholder.input will be true. After loading the plugin, you can re-use these properties in your own code.

Rails Long Term Support

Rails LTS provides security patches for old versions of Ruby on Rails (2.3, 3.2, 4.2 and 5.2)