How to solve garbled characters during JavaScript debugging

Debugging is an essential step when programming with JavaScript. However, during the debugging process, sometimes you will encounter some strange problems, one of which is garbled characters. This article is to solve this problem - JavaScript garbled when debugging.

First, we need to know how JavaScript interacts with browsers and servers so that we can better understand why garbled code occurs when debugging and how to fix it. JavaScript scripts can contain Chinese characters, but they are stored in Unicode encoding. When scripts are executed by a browser, they are converted to UTF-16 encoding, a commonly used character encoding format. These characters are then displayed on the user's screen.

During the debugging process, if you encounter garbled characters, it may be caused by the following reasons:

1. The character encoding is inconsistent. Sometimes, JavaScript scripts are inconsistent with the default character encoding of the server or browser, resulting in garbled characters during transmission or display.
2. Encoding error. Sometimes, when writing JavaScript code, we may make some encoding errors, such as using the wrong character set, or forgetting to perform encoding conversion.
3. Character set is missing. Some browsers or servers may lack support for certain character sets, resulting in the inability to display Chinese characters correctly.

In order to solve these problems, we need to take some actions.

First, we should check the encoding format of the JavaScript code to ensure that it is consistent with the default encoding format of the browser or server. You can use some text editors, such as Notepad or Sublime, to change the encoding and ensure that the file is saved in the correct encoding.

Secondly, we can also add character set specification in the meta tag of the HTML file, such as <meta charset="UTF-8">. This ensures that the browser uses the correct character set to parse the file.

If we encounter unresolved garbled characters, we can also use JavaScript's character encoding conversion functions in the code, such as escape and unescape, to convert the character encoding. Format.

In addition, if you are using a third-party library, when introducing it, you should pay attention to whether it supports the character set we need and whether there is a method for character encoding conversion.

In general, encountering garbled characters when debugging JavaScript is not a big problem. As long as you follow the above method to troubleshoot step by step, you can quickly solve it. We can also check and convert the encoding format through some online encoding conversion tools, such as https://tool.oschina.net/encode, to easily solve the problem of garbled characters.

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