Nyongeza na Upungufu wa Vipengele vya Safu katika JavaScript

Pia unaweza kutumia shughuli za nyongeza na upungufu:

javascriptlet arr = [1, 2, 3, 4];

arr[0]++;
++arr[1];
arr[2]--;
--arr[3];

console.log(arr); // itatoa [2, 3, 2, 3]