Handlebars helper - join

[tomakehurst]

Proposal

A very common use case when templating is to loop over some data and write out JSON array elements. Since these are comma-separated and can't have a trailing comma, this requires fairly verbose conditional code in order to create valid JSON.

A neater solution would be a join helper that could possibly be used on one of two ways:

{{join ',' myElements}}

or

{{#join ',' myData |as| item}}
{
  "id": "{{item.id}}",
  "name": "{{item.name}}
}
{{/join}}

References

No response