Function queryExist

queryExist(groupId, queryId): boolean
JMap.Query.queryExist

Returns true if the query exists for a given query group and a given query id.
Parameters
- groupId: JId
  The JMap query group id
- queryId: string
  The JMap query id
Returns boolean
Example
```
// returns true if query id=5 of group id=10 exists
JMap.Query.queryExist(10, 5)
```