Javascript ES6 TypeError: Class constructor Client cannot be invoked without 'new'

Question

I have a class written in Javascript ES6. When I try to execute nodemon command I always see this error TypeError: Class constructor Client cannot be invo

Answer 1

For those who are using ts-node, it could be possible that your tsconfig.json is unable to be loaded by ts-node.
First make sure you've set the below option for tsconfig.json:

{
    "compilerOptions": {
        "target": "ES6",
        ...
    }
}

Then you may try ts-node --script-mode or use --project to specify the path to your tsconfig.json.