去重超简方法Set

记录两种Set类去重方法

• 数组去重 [...new Set(array)]

   let arr = [1,1,1,1,1,1,2,2,2,2,3,3,3,5,5,6,6,7,8]
   console.log([...new Set(arr)])
  
   function dedupe(arr) {
         return Array.from(new Set(arr));
   }
   dedupe(arr)
  

• 字符串去重 [...new Set('ababbc')].join('')

    let str = 'asdsdaasqwqeqwessdddfffsadasd'
    console.log([...new Set(str)].join('')