JavaScript: access to private static field in class method not recognized as valid

[bobnil]

Type: Bug

The JavaScript syntax verifier considers access to private static properties in class methods to be illegal.

JavaScript example:

class Example {
  static #privateProperty = 'private example';
  static publicProperty = 'public example';
  constructor() {
    alert(this.constructor.publicProperty);
    alert(this.constructor.#privateProperty); // Considered to be illegal
  }
}

new Example();

The alert uses the static properties of the class inside a class method.
Both the access to the publicProperty and the #privateProperty works when running the code (tested in Chrome, Edge, and Firefox), but the IntelliSense isn't aware of this syntax: It doesn't give any suggestions of possible values.

The editor considers the access to #privateProperty to be illegal, since it starts with a #.

The editor doesn't complain about the access to publicProperty since this kind of access has been allowed for ages.

VS Code version: Code 1.84.0 (d037ac076cee195194f93ce6fe2bdfe2969cc82d, 2023-11-01T11:29:04.398Z)
OS version: Windows_NT x64 10.0.19045

[fatcerberus]

Actually both are considered errors: Playground

Property 'publicProperty' does not exist on type 'Function'.(2339)

The underlying issue being that .constructor is typed as Function rather than typeof Example. Relevant GitHub issue for that is #3841

[bobnil]

@fatcerberus Yes, that seams to be the problem.

[vadimmos]

This approach helped me playground

[typescript-bot]

This issue has been marked as "Duplicate" and has seen no recent activity. It has been automatically closed for house-keeping purposes.