javascript class definition in Observable

Community Help
1

can’t find any difference in standard class definition in Observable :frowning:

class User {
    #nameValue

    constructor(name) {
        this.name = name
    }

    get name() {
        return this.#nameValue
    }

    set name(name) {
        if (name === '') {
            throw new Error('Empty user name')
        }
        this.#nameValue = name
    }
}

const user = new User('username1')

static and private fields and method not supported.
what other restrictions are there, help please

2

Yes, Observable does not support class fields yet. I’m sorry, I’ve run into this limitation too, it’s annoying and it’s been true for a while. I’ve just reopened this old issue for it.

I don’t know if we currently have any comprehensive documentation of what’s unsupported but I can check. I just put a notebook of test cases for public and private class field syntaxes.

Of the syntax examples from MDN, the only one that currently works on Observable is:

class ClassWithPublicInstanceMethod {
  publicMethod() {
    return 'hello world'
  }
}
1 Like
3

i think that Observable using classes as syntax sugar on prototype entity. not new features of modern js standard.