code checker javascript

1function shourtcut(s1,s2) {
2let chars1 = s1.charAt(0);
3let chars2 = s2.charAt(0);
4console.log(chars1 + chars2);
5return chars1 + chars2;
6}

1var total = 0;
2var limit = 10;
3
4for (var i=0; i<limit; i++) {
5  total+=i
6};
7console.log(total);