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# source.aliasStrategy

:::warning Deprecation Warning
`source.aliasStrategy` is deprecated, please use [resolve.aliasStrategy](/configure/app/resolve/alias-strategy.md) instead.
:::

- **Type:** `'prefer-tsconfig' | 'prefer-alias'`
- **Default:** `'prefer-tsconfig'`

`source.aliasStrategy` is used to control the priority between the `paths` option in `tsconfig.json` and the `alias` option in the bundler.

:::info
The usage of this configuration item is exactly the same as that of Rsbuild. For detailed information, please refer to [Rsbuild - source.aliasStrategy](https://v2.rsbuild.dev/config/source/alias-strategy).
:::