add minimal zig wasm testing ground

2026-09-05 06:57:35 -04:00 · 2024-01-10 17:04:10 +01:00
parent f768e1eece
commit 0106a129c9
5 changed files with 34 additions and 0 deletions
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+# zig testing ground
+
+<https://dev.to/sleibrock/webassembly-with-zig-part-1-4onm>
+
+```sh
+# (re)compile add.zig
+zig build-lib add.zig -target wasm32-freestanding -dynamic -rdynamic
+# run server
+npx http-server -o
+```
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+export fn add(a: i32, b: i32) i32 {
+    return a + b;
+}
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+<!doctype html>
+<html>
+  <head>
+    <title>ZIG / WASM Demo</title>
+  </head>
+  <body>
+    <h3>check the console</h3>
+  </body>
+  <script src="./main.js"></script>
+</html>
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+async function run() {
+  let res = await fetch('./add.wasm');
+  res = await res.arrayBuffer();
+  res = await WebAssembly.instantiate(res, {
+    env: {},
+  });
+  const { add } = res.instance.exports;
+  console.log(add(3, 5));
+}
+
+run();