此方法返回表示指定对象的字符串。

toString() - 语法

string.toString( )

toString() - 返回值

返回表示指定对象的字符串。

toString() - 示例

<html>
   <head>
      <title>JavaScript String toString() Method</title>
   </head>
   
   <body>   
      <script type="text/javascript">
         var str="Apples are round, and Apples are Juicy.";
         document.write(str.toString());
      </script>      
   </body>
</html>

运行上面代码输出

Apples are round, and Apples are Juicy.

参考链接

https://www.learnfk.com/javascript/string-tostring.html