I want vite build lib/app support out not bundle js，d.ts.

[lamianbu]

Description

As a Web Components UI Lib developer using Vite，I want Vite support out not bundle js，d.ts.

Because I want UI Lib componets and utils is not bundle es module.

if vite build app support out not bundle js,d.ts，it is more ok，my demo project with lib, no need lib config

Suggested solution

vite build --nobundle

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[sapphi-red]

Would you add a example of input files and output files? Maybe you are looking for #4530 or preserveModules.

[lamianbu]

yes, preserveModules. support out not bundle js.

But how to make d.ts?

[petermekhaeil]

Vite uses esbuild to transpile Typescript into Javascript and esbuild does not do any type checking nor declaration output. You'll need to do that in an additional step:

• https://vitejs.dev/guide/features.html#typescript
• https://petermekhaeil.com/til/type-declarations-for-a-vite-app/

[lamianbu]

yeah ,I find two way can support d.ts:

1. rollup preserveModules + vite-plugin-dts
2. rollup preserveModules + tsc --declaration --emitDeclarationOnly

vite-plugin-dts can work on app mode, not only on lib mode.

[sapphi-red]

Closing as this is solved.