This may not be news to anyone else, but it was a surprise to me when I ran into it, so I thought perhaps someone else might find it helpful. Let’s imagine that you’ve got a form with a textarea that allows for a decent amount of user input, like, say a blog post or a news item on your family website.
When you push the “Enter” key it goes down to the next line. Behind the scenes, this is stored in your database as a new line character which is represented by “\n”. The problem is that “\n” has no meaning to a web browser. In web browser language, what you really need is a line break represented by the “<br />” tag. So how do you get all your new lines to turn into line breaks? The answer is one simple method added to your application_helper.rb file in your Rails project.
Then in your view, you simply call the line_break method around the appropriate block of text
<%= line_break(@news.body) %>
and that’s all there is to it!