Files
wickra/bindings/wasm
kingchenc d87005577e examples: move the WASM browser demo into a top-level examples/wasm/
Finish the per-language `examples/<lang>/` restructure by relocating the
WASM browser demo from bindings/wasm/examples/ to examples/wasm/.

* `examples/wasm/index.html` is the moved file; its WASM module import
  becomes `../../bindings/wasm/pkg/wickra_wasm.js` so the demo still loads
  the wasm-pack output without copying it.
* bindings/wasm/README.md, Quickstart-WASM.md, examples/README.md and the
  root README "Languages" + project-layout block all point at the new
  path. The serve command in the docs now says "serve the repository root
  and open examples/wasm/index.html".

`bindings/wasm/examples/` is empty after the move; the now-empty
directory is removed.
2026-05-23 00:11:07 +02:00
..
2026-05-22 04:05:15 +02:00

wickra-wasm

WebAssembly bindings for the Wickra streaming-first technical indicators library.

Build

You need wasm-pack and the wasm32-unknown-unknown Rust target:

rustup target add wasm32-unknown-unknown
cargo install wasm-pack

Then from the repository root:

wasm-pack build bindings/wasm --target web --release --features panic-hook

The compiled package lands in bindings/wasm/pkg/. Targets:

  • --target web for native ES modules in browsers
  • --target bundler for webpack/Vite/Rollup
  • --target nodejs for Node.js

Example

import init, { SMA, RSI, MACD, version } from "./pkg/wickra_wasm.js";

await init();
console.log("wickra:", version());

// Streaming
const rsi = new RSI(14);
for (const price of livePrices) {
  const v = rsi.update(price);
  if (v !== undefined && v > 70) console.log("overbought");
}

// Batch (returns a Float64Array; NaN for warmup positions)
const sma = new SMA(20).batch(new Float64Array(historicalPrices));

An interactive demo lives in examples/wasm/index.html (top-level alongside the other language examples). After building the package with wasm-pack build, serve the repository root and open examples/wasm/index.html in a browser.