[RUBY] [Rails] How to easily implement numbers with pull-down

About this article
A user registration function is implemented during the production of my own matching app. Among them, if the item of "age" can be implemented by pull-down instead of hand-made I thought it would be good if UX could be improved. When I looked it up, it was so easy to implement that I will post it as a memorandum!

[environment] ・ Ruby 2.6.5 Rails 6.0.0 ・ MacOS

It is assumed that the user management function has already been installed using the "device" gem.

app > views > devise > registrations > new.html.erb

Originally, it was described as follows for implementation by hand.

<%= f.text_field :age, autocomplete: "off" %>

Let's change it from "text" to "number"!

<%= f.number_field :age, autocomplete: "off" %>

It was easy to implement!

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