Stimulus JS TextArea Easy Submit with Cmd or Ctrl Enter

app_javascript_controllers_easysubmit.js

import { Controller } from "@hotwired/stimulus"

export default class extends Controller {
  
  submit() {
    event.currentTarget.form.requestSubmit()
  }
}

edit.html.erb

<%= form_with url: tasks_url, method: :patch do |form| %>        
<div>
  <label for="tasks">Your tasks</label>
  <%= text_area_tag :tasks, tasks, data: { controller: "textarea-autogrow easysubmit", action: "keydown.meta+enter->easysubmit#submit keydown.ctrl+enter->easysubmit#submit" } %>
</div>

<div>
  <%= link_to "Cancel", tasks_url %>
  <%= form.button "Save" %>
</div>
<% end %>

See a more complete form utilities here