import { DataFrame, Field } from '@grafana/data'; export const findFirstFieldByMatcher = ( input: DataFrame[], matcher: (field: Field, frame: DataFrame, input: DataFrame[]) => boolean, excludeField?: Field ): Field | undefined => { for (const frame of input) { const field = frame.fields.find((field) => matcher(field, frame, input) && field !== excludeField); if (field) { return field; } } return undefined; };