Piliponful

export default initialState => {
  const stateEntriesNames = Object.keys(initialState)
  const reducer = (state, action) => stateEntriesNames.includes(action.type) ? ({ ...new Map(state).set(action.type, action.payload) }) : initialState
  const setters = stateEntriesNames.reduce((acc, next) => ({ ...acc, [next]: payload => ({ type: next, payload }) }), {})
  return { reducer, setters }
}

Piliponful

var graph1 = {
	vertex: ["1","2","3"],
	edge: [,
	/* vertex1, vertex2, weight */
		["1", "2", 4],
		["1", "3", 7],
		["2", "3", 1]
	]
},
graph2 = {