[jkcxn]

Yes Dart with Flutter and swift UI both had to add language features just to support if and loop expressions. But people writing immediate mode guis have been doing the exact same thing using standard language features for years. There's no reason you can't mix React-ive style components with an immediate style API. I do this in a GUI library I've written in D. The downside is you get slightly less type safety, but I'm happy to pay that cost

[favorited]

> swift UI both had to add language features just to support if and loop expressions

The special syntax for loops in SwiftUI is important, because plain-old loops are always eager. For example, if you were building building a list using a loop, it would iterate over every item up-front to generate the list's body. With the `ForEach` struct, on the other hand, you provide the block to create each item, and it can be invoked lazily as the content will appear.