[afavour]

Yeah this really bugs me because it leads people down the path of WASM craziness when the language is rarely the problem.

Most web apps are slow because the DOM is slow.

[coldtea]

The DOM is plenty fast.

Most web apps use it for what it wasn't meant to do, in an inefficient matter, with useless rerenders and overhead.

[afavour]

Let me clarify: the DOM is fast _at what it does_. But in order to truly serve things like web apps rather than documents it needs to have primitives like list virtualization. It doesn't, so people end up using needlessly complex JavaScript frameworks that drag down performance.

[skydhash]

> But in order to truly serve things like web apps rather than documents it needs to have primitives like list virtualization.

Why not create a UI system, like X Window over the web (I know X can be done over the network) specifically for web apps? Solve the issue at the root and leave the DOM to documents.

[WeAddValue]

Or just use htmx.org

[WeAddValue]

This! Call it once with a string containing 457 elements and the DOM is blazing fast. Call it 457 times to create an element and the DOM is slow.