javascirpt arguments object

1// With Rest Parameter
2let sum = (...nums) => {
3  let total = 0;
4  for (let num of nums) {
5    total += num;
6  }
7  return total;
8};
9console.log(sum(4, 23, 65, 2)); // 94
10
11
12// Before
13function sum() {
14  let total = 0;
15  for (let argument of arguments) {
16    total += argument;
17  }
18  return total;
19}
20console.log(sum(4, 23, 65, 2)); // 94

1var sum = 0;
2function addAll(){
3    for (var i = 0; i<arguments.length; i++){
4        sum+=arguments[i];
5    }
6    console.log(sum);
7}
8
9addAll(1, 2, 3, 4, 5, 6, 7, 8, 9,10); //we can provide inifite numbers as argument

1function test(a, b, c){
2    // console.log(arguments);
3    // console.log(JSON.stringify(arguments));
4    // console.log(typeof a);
5
6    // var sum = 0;
7    // for (var i = 0; i<arguments.length; i++){
8    //     sum += arguments[i];
9    // }
10    // console.log(sum);
11
12    //for (var i = 0; i<arguments.length; i++){
13    //    console.log(arguments[i]);
14    //}
15  
16    console.log(arguments[0]);
17}
18
19test(10, 20, 30);