Files

T

kingchenc 3e8c48eefc fix(wasm): call expect() directly instead of ok().expect() in tests

The WASM binding's test module (added in B6) used `.ok().expect(...)`
on the Result-returning constructors. clippy's ok_expect lint rejects
this under the workspace's `-D warnings`, and the CI rust job lints
wickra-wasm with --all-targets — so the branch would fail CI.

Replace all seven `.ok().expect(...)` with `.expect(...)` directly;
JsError implements Debug, so this compiles and gives a better panic
message. clippy and fmt are now clean for wickra-wasm.

2026-05-22 16:47:16 +02:00

examples

Wickra 0.1.0: streaming-first technical indicators

2026-05-21 17:50:45 +02:00

src

fix(wasm): call expect() directly instead of ok().expect() in tests

2026-05-22 16:47:16 +02:00

Cargo.toml

B6: add a WASM binding test suite

2026-05-22 04:05:15 +02:00

README.md

Wickra 0.1.0: streaming-first technical indicators

2026-05-21 17:50:45 +02:00

README.md

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 bindings/wasm/examples/index.html. After building the package serve the bindings/wasm/ directory and open examples/index.html.