JavaScript uses Dom to change the value of the text box in front of the hyperlink_javascript skills

Using the DOM tree, you can modify related content without using the ID, such as modifying the value of the text box in front of each hyperlink.

<title></title> <table> <tr> <td> <input id="hehe" type="text" value="1"><a href="#" onclick="this.previousSibling.value "> </a> </td> <td> <input id="hehe" type="text" value="1"><a href="#" onclick="this.previousSibling.value "> </a> </td> <td> <input id="hehe" type="text" value="1"><a href="#" onclick="this.previousSibling.value "> </a> </td> </tr> </table>
[Ctrl A Select all Note: If you need to introduce external Js, you need to refresh to execute ]

Here we mainly use the previousSibling attribute to access The previous node, thereby achieving the effect of changing the value of the previous text box.