ES6 Set() 用法问题

Question

怎么把创建的Set()以数组形式的string存到localStorage？

Answer 1

let a = new Set([1,2,3]);
let b = Array.from(a);
localStorage.setItem("somename",JSON.stringify(b))

Answer 2

localStroage.setItem('someName',JSON.stringify(Aarry.from(new Set([1,2,3]))))