how to implement editing/formating text area in rails

Question

i want to implement text box(text area) as shown in picture .I know the simple textarea but dont know this type of text area which gives formatting ,numbering facility,Since

Answer 1

This is not something that Rails provides, but there are many javascript wysiwyg plugins that solve this problem. This has worked well for me before: https://github.com/spohlenz/tinymce-rails