subset.ts

export const isSubset = <T extends { id: string }>(array: T[], subset: T[]): boolean => {
  const ids: string[] = array.map((item: T) => item.id);

  const notInArray = subset.filter((item: T) => !ids.includes(item.id))

  return notInArray.length <= 0;
}

// @fakenickles
  
const isSubsetBy = (source, target, comparator) => target.every(
  element => Boolean(source.find(comparator(element)))
);

isSubsetBy(
 [{id: 1}, {id: 2}, {id: 3}, {id: 4}, {id: 5}], 
 [{id: 2}, {id: 3}], 
 (source) => (target) => source.id === target.id
)