阅读以下代码,请分析出结果: var arr = new Array(1 ,3 ,5); arr[4]='z'; arr2 = arr.reverse(); arr3 = arr.concat(arr2); alert(arr3);
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
皮皮学刷刷变学霸
举一反三
【简答题】TRUE or FALSE (填入T或F) Example 1 1 The Pearl River Tower is located in Beijing. 2 The tower has 55 storeys. 3 The tower is exactly 309 meters high. 4 The wind provides some of its power. 5 Radiant coo...