Omit String(value) in interpolated string JS output when value is already string

[sgrove]

This reason:

let appId = "7323b2d5-e423-4b18-ad93-31e53f190baa";
let oneGraphUrl = {j|https://serve.onegraph.io/graphql?app_id=$appId|j};

outputs this javascript:

var appId = "7323b2d5-e423-4b18-ad93-31e53f190baa";
var oneGraphUrl = "https://serve.onegraph.io/graphql?app_id=" + (String(appId) + "");

If the type of appId is known to be string (or an alias of string/abstract string), is it possible that in the output of

{j|https://serve.onegraph.io/graphql?app_id=$appId|j}

we could omit the + (String(appId) + "") and instead output

"https://serve.onegraph.io/graphql?app_id=" + appId;