CODEWITHSUNDEEP
javascriptnode.jsecmascript-6
machineghost
machineghost

Reputation: 35790

How Can I Destructure an Argument With a Default?

When I run the following snippet in Chrome, it runs perfectly:

(({foo}={}) => {console.log(foo);})({foo: 'baz'});
// logs "baz"

However, if I run that same snippet in Node I get a:

ReferenceError: Invalid left-hand side in assignment

... despite the fact that I ran Node with both the default and destructuring harmony parameters:

nodejs --harmony  --harmony_destructuring --harmony_default_parameters

So, my question is, what magic incantation does Node require to process this (perfectly valid, as far as I can tell) ES6 statement?

Upvotes: 0

Views: 74

Answers (1)

machineghost
machineghost

Reputation: 35790

As @dvlsg suggested, this is simply a bug in the experimental implementation of these Node features.

However, as @estus suggested, and as indicated by the Node developers themselves here, the soon-to-be-released new version of Node will not only fix this problem, it will also roll the bulk of the ES6 functionality directly in to Node (ie. no more node --harmony_whatever).

Upvotes: 0

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