query.mergeQuery() function

Merges query-option fragments into one options object.

Signature:

export function mergeQuery(queryOptions?: any, ...merge: any[]): any;

Parameters

Returns:

any

The same queryOptions object.

Exceptions

TypeError when a fragment's property type conflicts with the target's.

Remarks

Per property: an absent property is taken as-is, arrays are unioned with duplicates dropped, objects are shallow-assigned, and anything else is overwritten by the later value. A fragment whose property type disagrees with what is already there — a scalar where an array sits, say — throws rather than guessing.

MUTATES and returns queryOptions, so pass a fresh object unless sharing is what you want.