理順 JavaScript (12) – 一個比較實用的數組用法

function Item(id, name) {  this.id = id;  this.name = name;}var arr = new Array(8);arr[0] = new Item('001', 'AAA');arr[1] = new Item('002', 'BBB');arr[2] = new Item('003', 'CCC');arr[3] = new Item('004', 'DDD');arr[4] = new Item('005', 'EEE');arr[5] = new Item('006', 'FFF');arr[6] = new Item('007', 'GGG');arr[7] = new Item('008', 'HHH');for (var i in arr) {  document.write(arr[i].id + ' - ' + arr[i].name + '<br>');}/* 顯示結果如下:001 - AAA002 - BBB003 - CCC004 - DDD005 - EEE006 - FFF007 - GGG008 - HHH*/