In forms, the choices of one input field often depend on another field. For instance, choosing a country (e.g. US) would restrict the state choices to AL, AR, AK, ....
2) Allowing choicesUrl to be computed using a JSONata expression, similar to this "compute" example:
https://dashjoin.github.io/#/example/compute. Less readable, since the expression requires JSONata string concat and escaped quotes. We have the full flexibility though.
In forms, the choices of one input field often depend on another field. For instance, choosing a country (e.g. US) would restrict the state choices to AL, AR, AK, ....
We could achieve this in two ways / syntaxes:
1) JavaScript template literal (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals): choicesUrl = /get/states/$ {country}. This is more readable but raises the question what kind of expressions are allowed. For instance, Can we use a more complex expression like $ {address[1].state}?
2) Allowing choicesUrl to be computed using a JSONata expression, similar to this "compute" example: https://dashjoin.github.io/#/example/compute. Less readable, since the expression requires JSONata string concat and escaped quotes. We have the full flexibility though.