Ruby on Rails: How do I add placeholder text to a f.text_field?

Question

How can I add placeholder text to my f.text_field fields so that the text comes pre-written by default, and when a user click inside the fields, the te

Answer 1

Here is a much cleaner syntax if using rails 4+

<%= f.text_field :attr, placeholder: "placeholder text" %>

So rails 4+ can now use this syntax instead of the hash syntax