Topic: Do I need to do anything about this warning error when installing CLI?
When installing mdb-cli
npm WARN deprecated core-js@2.6.12: core-js@<3.4 is no longer maintained and not recommended for usage due to the number of issues. Because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Please, upgrade your dependencies to the actual version of core-js.
I have no idea what to do with this.
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Status
Answered
Specification of the issue
- ForumUser: Priority
- Premium support: Yes
- Technology: MDB Standard
- MDB Version: MDB5 3.11.0
- Device: pc
- Browser: edge
- OS: win 10
- Provided sample code: No
- Provided link: No
Sebastian Kaczmarek staff commented 2 years ago
We'll have a look at this but for the time being, please just ignore that.
foys priority commented 2 years ago
I found topics from over a year ago stating this issue and it's still there. And because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Please, upgrade your dependencies to the actual version of core-js. it looks like something to resolve asap. Can't you just up the version in the package?
Sebastian Kaczmarek staff commented 2 years ago
@foys Currently, we are focusing on making the product stable and as intuitive as possible. Getting rid of the bugs and such warnings is a part of that process but it takes time. It's not always as easy as upping the version in
package.jsonbecause we have a ton of features and we need to make sure that we are not breaking anything. MDB CLI is being used in a variety of environments and scenarios. This is why, as long as it doesn't break anything, we'd rather have a little warning during installation than break someone's CI/CD pipeline for instance. I hope that helps understand our point of view on that. If you have any other questions please add a new comment :)foys priority commented 2 years ago
Hey Sebastian. Thanks for your reply. Sounds reasonable enough :)