Benchmarks

Result

js-framework-benchmark is the standard way to compare how fast frameworks create, update, swap and remove rows of a table. The score is the weighted geometric mean of slowdowns against hand written vanilla JavaScript. Lower is better.

vanilla

1.00

Solid

1.12

Svelte

1.12

dartea

1.18

Elm

1.52

React

1.58

The dartea program is the official Elm implementation from the benchmark repository, with Array and Random replaced by List and a small generator, because dartea does not have those modules yet. Same model, same messages, same view. The difference to Elm 0.19.1 comes from the compiler and the runtime.

Read this before quoting the numbers

This is one run on one machine: Apple M5, headless Chrome, August 30, 2026. It is not the official published table. The other frameworks are the official implementations from the benchmark repository. Only the dartea program is ours.

Run it yourself

The script uses a dartea built from source, so you need OCaml 5.4 with dune first.

git clone https://github.com/jongleb/dartea
cd dartea
opam install . --deps-only
dune build
sh bench/run.sh

The script clones js-framework-benchmark into _bench, adds dartea as one more keyed framework, builds the official vanilla, Elm, React, Svelte and Solid implementations and runs the official runner headless. Every measurement is the median of 15 runs, from the click to the end of the last paint in a Chrome trace. The result page is at _bench/webdriver-ts-results/dist/index.html.