📅  最后修改于: 2022-03-11 15:01:13.391000             🧑  作者: Mango
//nested for loop
var arr = [[1,2], [3,4], [5,6]];
for (var i = 0; i < arr.length; i++) {
for (var j = 0; j < arr[i].length; j++) {
console.log(arr[i][j]);
}
}