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Klortho/circular.js

Created May 25, 2016 20:00
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Circular object reference in JavaScript without mutation
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circular.js
const Node = function(node) {
this.other = (typeof node === 'undefined') ? new Node(this) : node;
};
console.log(new Node()); //=> { other: { other: [Circular] } }
@Klortho
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Klortho commented May 25, 2016

But I hate that assignment statement -- still a whole lotta mutating going on. This, for example, does not work:

const newNode = function(node) {
  const self = {
    other: typeof node === 'undefined' ? newNode(self) : node
  };
  return self;
};

// ReferenceError: self is not defined:
console.log(newNode());

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