Home Iterating through multiple fields on form post data
 In my rails app, I currently am able to get form post data from a two form fields of name="start" and name="end". The post data is as follows: start: 2018-05-18 12:00 end: 2018-05-18 12:00  Here is the code that takes the post data and does something with it. post "/time" do time = DoTime.new start = params["start"] finish = params["end"] time.started_at = start time.finished_at = finish time.profile = current_user time.save redirect "/profile" end  I have since implemented a dynamic form which allows the user to duplicate the start and end fields as many times as they want. All this does is add the HTML form fields in place before submission and posts it with the form. An example of the new post data is here: start: 2018-05-18 12:00 end: 2018-05-18 12:00 start: 2018-05-19 12:00 end: 2018-05-19 12:00  I am wondering how I can loop through the ruby to look for each instance of start and end and run the code above for each of the elements it finds. Any pointers or advice? I have tried a few different ways but keep running into errors. Thanks