【编程进阶】js数组去重任意类型

Question

写一个函数实现js数组任意类型去重：
输入:["a","a",0, 0, {}, {}, {a:1},{a:1},[],[],[1],[1],null, null, undefined,undefined, /\.js$/, /\.js$/]
输出：["a", 0 , {}, {a:1}, [], [1], null, undefined, /\.js$/]

Answer 1

const unique = (array) => {
    let obj = {}
    return array.filter((item, index) => {
      // 防止key重复
      let newItem = item + JSON.stringify(item)
      return obj.hasOwnProperty(newItem) ? false : obj[newItem] = true
    })
}

Answer 2

这不是去重任意类型，这就是数组去重