3

The code structre is quite simple:

class A {
    b = 1
    c = {
        d () {
            console.log(this.b) //=> undefined
            //how can i access b here?
        }
    }
}

I would prefer a not so hacky workaround since this is a core piece of code for the project i am working on

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2
  • What is d? It looks like you mean for d to be a function. In which case, you should write function d() {} (or d: function() {} within your c object) rather than d() {}. Arrow notation is a compact and more limited version of function. Commented Dec 21, 2021 at 0:24
  • @Euthyphro shorthand function notations in objects have been a feature in js since ES2015 Commented Dec 21, 2021 at 0:47

1 Answer 1

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5

You could use an arrow function to preserve this where the function is being declared:

class A {
    b = 1
    c = {
        d: () => console.log(this.b)
    }
}

const a = new A;
a.c.d();

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