Class-transformer: question: how can I use class-transformer in a 'Create React App' project?

[RubiTree]

My sample project like below, it is a simplest demo from 'Create React App', but I can't get any value after plainToClass.

My Project
Test Case （line 12-18）

[RubiTree]

I have found the solution. 😂

[github-actions[bot]]

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