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Add Foreign Functions #1

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Apr 1, 2024
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Add Foreign Functions #1

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10 changes: 10 additions & 0 deletions src/guide/functions.md
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Expand Up @@ -230,3 +230,13 @@ counter() // 3
```

The `makeCounter` function returns a counter function which will print sequential numbers when called.

## Foreign Functions

A foreign function declaration can be used to import functions from the webassembly host.

```grain
foreign wasm alert: WasmI32 => Void from "host"

alert(42)
```