dayjs

As web developers, we heavily rely OSS packages. One popular example is Day.js, a JS lib for parsing, validating, manipulating, and formatting dates. It's a widely-used alternative to Moment, with over 17mil weekly downloads on npm. A critical bug was discovered in Day.js (see: https://github.com/iamkun/dayjs/pull/2118) causing incorrect date manipulation (add, subtract) when in UTC TZ. This could have severe implications for any project relying on Day.js for date-related functionality. However, the maintainer of the project appears to be unresponsive, leaving the bug unresolved and the future of the library uncertain. This raises some important questions for our community: - At what point should we consider a widely-used OSS project "abandoned" if the maintainer is unresponsive? - Is forking the project the best solution, or should we fi

I posted about this elsewhere in the comments, but my experience with day.js is that if you're concerned with these kinds of corner cases, maybe day.js isn't the library for you.[1][2] [1]: https://github.com/iamkun/dayjs/issues/1816 [2]: https://github.com/iamkun/dayjs/issues/1817

Welllll… “works right now” is perhaps an overly strong assertion when it comes to day.js. I was working on a library we use for parsing "schedules" (like, alarm turns on at 9:00pm on Thursday, and off again at 7:00am on Friday). I was doing things like computing the number of seconds until the next scheduled transition. I tried switching from moment to day.js, and my unit tests immediately failed. Within a couple of hours I’d opened two bugs [1][2], both related to incorrect behaviour in corner cases (like generating the incorrect date when near a daylight saving time transition). The fact that it only took me a few hours to find these suggests there are plenty more bugs like these to find. The fact that these bugs have been open since the start of March with no movement on them suggests they aren’t too interested in correct behaviou

the breakdown is not complete, for example I needed to pull in a new library to get the localized first day of the week with Luxon (this differs based on locale) Also I really don't recommend dayJS, its documentation is crap (for example this is the documentation of its timezone plugin: https://day.js.org/docs/en/plugin/timezone ) and is full of serious bugs that its developer does not respond to: https://github.com/iamkun/dayjs/issues Also the code style is really concerning too: https://github.com/iamkun/dayjs/issues/1598

> So far there isn't much opensource written in China There are lots of opensource written in China. I think you have mistaken my stance on this. The Chinese open-source microcosmos are pretty cool. It's just that I have yet seen anything reactjs-great[1], let alone linux-great. Here are some github repos by the big players: Ant - https://github.com/ant-design TaroJS - https://github.com/NervJS Tencent - https://github.com/Tencent Baidu - https://github.com/PaddlePaddle ... There are also many pretty nice libraries written and maintained independently by devs (or small startups) in China. dayjs - https://github.com/iamkun/dayjs GPT2 in Chinese - https://github.com/Morizeyao/GPT2-Chinese Wechaty - https://github.com/wechaty vercel ssg - https://github.com/shuding/nextra ... [1]: For example, vuejs (https://github.com/vuejs/vue) is closed t

Can recommend DayJS[0] as a lighter alternative to MomentJS with an almost identical API. [0] https://github.com/iamkun/dayjs