Function beforeSubmit

beforeSubmit(listenerId, fn): void
JMap.Event.Query.on.beforeSubmit

This event is triggered when a query is submitted, before the call to the server is made.
Parameters
- listenerId: string
  Your listener id (must be unique)
- fn: ((params) => void)
  Your listener function
  - - (params): void
    - Parameters
      params: JQueryBeforeEventParams
      Returns void
Returns void
Example
```
// log a message in the console once the button submit is clicked.
JMap.Event.Query.on.beforeSubmit(
  "custom-query-before-submit",
  params => console.log("A query to the server will be done", params)
)
```