数组合并去重排序

const arr1 = [54, 67, 89, 1, 4, 3, 5, 0, 0, 3]
const arr2 = [5, 5, 6, 7, 8, 3, 2, 5, 7, 453, 54]
function handle(a,b){
    let arr = Array.from(new Set(a.concat(b)))
    for (let i = 0; i < arr.length; i++) {
       for (let j = 0; j < arr.length-1-i; j++) {
            if (arr[j]>arr[j+1]) {
                arr[j]=[arr[j+1],arr[j+1]=arr[j]][0]
            }
       }
    }
    return arr
}


console.log(handle(arr1,arr2));