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TypeScript enables strict mode, and the interface includes an optional never type; defineProps returns the never type. #14056

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#14059
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TypeScript enables strict mode, and the interface includes an optional never type; defineProps returns the never type.#14056
#14059
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scope: types
@jevin98

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@jevin98
jevin98
opened on Nov 5, 2025

Vue version

3.5.22

Link to minimal reproduction

https://play.vuejs.org/#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

Steps to reproduce

What is expected?

Image

What is actually happening?

Image Image

System Info

System:
    OS: Windows 10 10.0.19044
    CPU: (20) x64 Intel(R) Xeon(R) CPU E5-2666 v3 @ 2.90GHz
    Memory: 9.39 GB / 31.84 GB
  Binaries:
    Node: 23.11.1 - C:\nvm4w\nodejs\node.EXE
    npm: 10.9.2 - C:\nvm4w\nodejs\npm.CMD
    pnpm: 10.19.0 - C:\nvm4w\nodejs\pnpm.CMD
  Browsers:
    Chrome: 141.0.7390.108
    Edge: Chromium (141.0.3537.92)
    Internet Explorer: 11.0.19041.5794

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