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littledivy merged 1 commit into from
Jun 5, 2026
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docs(node): document module-sync export condition #3183

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25 changes: 21 additions & 4 deletions runtime/fundamentals/node.md
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Expand Up @@ -429,19 +429,36 @@ resolution mode. The conditions satisfied by an import from a Deno ESM module
are as follows:

```json
["deno", "node", "import", "default"]
["deno", "node", "import", "module-sync", "default"]
```

This means that the first condition listed in a package export whose key equals
any of these strings will be matched. You can expand this list using the
`--conditions` CLI flag:
any of these strings will be matched. For `require()` resolution, including
`createRequire()`, the conditions are:

```json
["require", "node", "module-sync", "default"]
```

Deno also applies `module-sync` when analyzing CommonJS modules that re-export
through `require()`.

You can expand the import conditions list using the `--conditions` CLI flag:

```shell
deno run --conditions development,react-server main.ts
```

```json
["development", "react-server", "deno", "node", "import", "default"]
[
"development",
"react-server",
"deno",
"node",
"import",
"module-sync",
"default"
]
```

## Importing types
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