Support class @Decorators

[georgekrax]

Hello everyone,

Does swc support class @decorators? I have a Node.js project with TypeORM, and would to use swc for faster compilation. Is swc a good solution for a Node.js - Express.js project, or does it support only front-end projects, like Next.js?

Thanks in advance

[aelbore]

@georgekrax yes it support decorators you can try here in swc playground https://swc.rs/playground

you can try this config

{
  "jsc": {
    "parser": {
      "syntax": "typescript",
      "decorators": true,
      "dynamicImport": true
    },
    "target": "es2020"
  }
}

[georgekrax]

Oh, yes you are right. Thanks!

[georgekrax]

But still I cannot run it with node build/index.js. When I use tsc it works fine, but I do not why swc and tsc compile differently my code.

[kdy1]

Decorator is supported, but there are some bugs.

[georgekrax]

In my code it seems like when I run node build/index.js, it starts the server once and then restarts again without making any changes. I do not know if nodemon also creates this issue

[georgekrax]

Okay, I fixed it! However, node build/index.js takes 10+ seconds to run!!! Any solution?