记录了两个Set类的去重方法Array去重[...newSet(array)]letarr=[1,1,1,1,1,1,2,2,2,2,3,3,3,5,5,6,6,7,8]console.log([...newSet(arr)])functiondedupe(arr){returnArray.from(newSet(arr));}dedupe(arr)字符串去重[...newSet('ababbc')].join('')letstr='asdsdaasqwqeqwessdddfffsadasd'console.log([...newSet(str)].join('')
