SOURCE

let arr = [1,25,21,44,32,556,443];
for(let i = 0;i<arr.length;i++){
    for(let j = 0;j<arr.length-i-1;j++){
        let temp;
        if(arr[j]>arr[j+1]){
            temp = arr[j];
            arr[j]=arr[j+1];
            arr[j+1]=temp;
        }
    }
}
console.log(arr);
// console.log(arr.sort());