How to solve javascript:void(o)? Detailed step-by-step analysis

Steps to resolve javascript:void(o) error: Check if the link points to the expected script. Use a text editor or JavaScript console to remove javascript:void(o). Click the link again to execute the script. If there is an error, open the browser console to view detailed information.

How to solve javascript:void(o)

Introduction

javascript:void(o) is an invalid JavaScript expression that often appears in links that are not recognized correctly. When the browser attempts to execute the link, an error is thrown. This tutorial will guide you on how to resolve this issue.

Steps

1. Check the link: Verify that the link points to the expected script.
2. Remove void(o): Use a text editor or JavaScript console to remove javascript:void(o).
3. Retry the link: Click the link again to execute the script.
4. Check the console: If an error occurs, open the browser console for details.

Practical case

Suppose you encounter the following invalid link:

<a href="javascript:void(o);">打开窗口</a>

Solution:

1. Use a text editor to modify the link as follows:

<a href="openWindow.js">打开窗口</a>

2. Make sure the openWindow.js file exists.
3. Click the link again and the window will open.

Note: The

• void operator is used to destroy references, so void(o) will set o to undefined.
• Removing javascript:void(o) will not break other JavaScript code.
• If there are other problems in the link, such as syntax errors or non-existent object files, this can also cause errors.

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