44 lines
1.2 KiB
Markdown
44 lines
1.2 KiB
Markdown
# AssemblyScript
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[AssemblyScript] has included support for targeting WASI since version 0.10.0. To use it, add
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`import "wasi"` at the top of your entrypoint file.
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Let's walk through a simple hello world example using the latest AssemblyScript runtime (at the time of this writing, it is AssemblyScript runtime included in version 0.19.x):
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## `wasi-hello-world.ts`
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```typescript
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{{#include ./assemblyscript-hello-world/wasi-hello-world.ts}}
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```
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This uses [as-wasi] as a dependency to make working with the AssemblyScript WASI
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bindings easier. Then, you can run:
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```sh
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asc wasi-hello-world.ts -b wasi-hello-world.wasm
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```
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to compile it to wasm, and
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```sh
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wasmtime wasi-hello-world.wasm
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```
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to run it from the command-line. Or you can instantiate it using the [Wasmtime API].
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## `package.json`
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It can also be packaged using a `package.json` file:
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```json
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{{#include ./assemblyscript-hello-world/package.json}}
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```
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You can also [browse this source code online][code] and clone the wasmtime
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repository to run the example locally.
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[code]: https://github.com/bytecodealliance/wasmtime/blob/main/docs/assemblyscript-hello-world
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[AssemblyScript]: https://assemblyscript.org
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[as-wasi]: https://github.com/jedisct1/as-wasi
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[Wasmtime API]: ./lang.md
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