1import * as _ from 'lodash-es'
2
3export const mergeConcatA = (...props: object[]) => _.mergeWith({}, ...props, (a : object, b : object) => {
4  // like _.mergeWith but union's arrays
5  if (_.isArray(a) && _.isArray(b)) {
6    return _.union(a, b)
7  }
8})
9