简单教程
提交运行
代码编辑器:
<script> var txt = "Hello World!"; document.write(txt.constructor); </script>
x
1
<
script
>
2
var
txt
=
"Hello World!"
;
3
document
.
write
(
txt
.
constructor
);
4
</
script
>
5
运行结果: