Drop in replacements for elm/time's's Tasks.

The JavaScript runner has these tasks builtin by default. If needed they can be overridden like so:

NOTE: The custom examples are the same as the built-in implementations.

import * as ConcurrentTask from "@andrewmacmurray/elm-concurrent-task"


ConcurrentTask.register({
  tasks: {},
  ports: app.ports,
  builtins: {
    timeNow: customTimeNow,
    timeZoneOffset: customTimeZoneOffset,
    timeZoneName: customTimeZoneName,
  }
});


function customTimeNow(): number {
  return Date.now()
}


function customTimeZoneOffset(): number {
  return -new Date().getTimezoneOffset();
}


function customTimeZoneName(): string | number {
  try {
    return Intl.DateTimeFormat().resolvedOptions().timeZone;
  } catch (e) {
    return new Date().getTimezoneOffset();
  }
}