An explanation of how to create a Chrome extension that hides Japanese comments on YouTube, along with the background of its creation.
Logic and Background of the Extension
This Chrome extension was created to hide Japanese comments from YouTube’s comment section. Specifically, it checks comment elements each time you scroll the page and calls a script that removes Japanese comments. YouTube’s source code is very complex, and normal methods often don’t work well, so this approach was adopted.
About Performance
Since this extension processes every time you scroll, it consumes CPU. However, since it only happens when comments are loaded, I think it’s within acceptable limits. If you have a Core i3 or better CPU, it should work without problems.
Feature Details
- Hides Japanese (including hiragana and katakana) comments from YouTube’s comment section.
Other Considerations
YouTube’s comment section has many people who talk about themselves or continue long replies. This extension is very useful for those who don’t want to see such comments.
Hiding Non-Japanese Comments is Also Possible
Conversely, it’s also possible to create an extension that hides non-Japanese comments. This might be convenient for those who are not interested in non-Japanese comments or can’t read foreign language comments. However, a feature to show/hide only English is technically difficult. This is because English is difficult to distinguish from other languages that use alphabets.
Japanese, Korean, Hangul, Chinese, Russian, Hindi, etc. are easy to identify, but Indo-European languages like Spanish and English are difficult to distinguish. With the advancement of deep learning, this may improve in the future, but currently, it’s a difficult area with JavaScript alone.
I hope this extension will help you enjoy YouTube more comfortably.
2024 Update
This extension was used by many people. Thank you very much. However, unfortunately, due to changes in the Chrome Web Store developer regulations, this extension has been discontinued. We plan to provide similar functionality through other methods in the future. We appreciate your understanding.
If you are in a hurry, we can handle individual requests, so please feel free to contact us. We will also keep you updated on the release of new extensions, so please look forward to it.
Thank you for your continued support.