var arr="good","good","study","day","day","up"];
console.log(arr.splice(2,1,"eat"));
console.log(arr);
上面代码运行结果是
选项:
A:"study"] ,"good","good","eat","day","day","up"]
B:"eat" ],"good","good","eat","day","day","up"]
C:"study"],"good","good","study","eat","day","up"]
D:"eat" ],"good","good","study","eat","day","up"]
发布时间:2024-05-08 01:19:48