open-consul/ui/packages/consul-ui/app/components/action/index.hbs

{{#if @for~}}
  <label
    for={{@for}}
    ...attributes
  >{{yield}}</label>
{{~else if @href~}}
  {{~#if @external~}}
    <a
      href={{@href}}
      target="_blank"
      rel="noopener noreferrer"
      ...attributes
    >{{yield}}</a>
  {{~else~}}
    <a
      href={{@href}}
      ...attributes
    >{{yield}}</a>
  {{~/if~}}
{{~else~}}
  <button
    type="button"
    {{on 'click' (optional @onclick)}}
    tabindex={{@tabindex}}
    ...attributes
  >{{yield}}</button>
{{~/if}}