new Array()
new Array(1,2,3)
new Array(size)
var list = new Array(1,2,3);
alert(list);
>1,2,3
list.push(4);
alert(list);
>1,2,3,4
list.push(5);
alert(list);
>1,2,3,4,5
alert(list.pop());
>5
alert(list);
>1,2,3,4
for (var i in list){ // 動かない?
alert(i);
}
>1
>2
>3
>4
delete list[3];