var data = [1, 2, 3, 4, 5, 6, 7, 8, 9]; var result = []; for (var i = 0; i < data.length; i += 3) { result.push(data.slice(i, i + 3)); } console.log(result);
var data = [1, 2, 3, 4, 5, 6, 7, 8, 9]; var result = []; for (var i = 0; i < data.length; i += 3) { result.push(data.slice(i, i + 3)); } console.log(result);