3 ms·

This seems like a super aggressive move, giving up lots of performance & complexity for some pretty com ppl lex consistency checking. Is tbis in production bui

• technion 5y ago
  No, this is document as only occurring in development mode.
  • tomduncalf 5y ago
    Yea sadly there weren’t enough characters in the title field for me to put “strict dev mode” so that nuance was lost Edit: dang updated the post title to include this
• tomstuart 5y ago
  Aside from being development-only, note that you also need to wrap a component in `<React.StrictMode>…</React.StrictMode>` to opt it into this.
  • tomduncalf 5y ago
    Yeah, good point - I thought it could be that Next.js changed their default behaviour to use strict mode when they upgraded to React 18 but another comment says React 17 silenced the duplicate logs(!) so maybe the change is older than that.