ES6 destructuring assignment doesn't work in latest Node

Question

I'm using the following code that works perfectly on es6fiddle:

const o1 = { aa: 11, bb: 22, cc: 33 };

let { aa, ...o2 } = o1;



console.log(o1.aa);

console.log(o2.cc);

(purpose of the code above is to remove

aa

element from

o1

, store the rest in

o2

, without mutating

o1

).

It works on web, but when I try to execute this code from my console it doesn't work. I tried with latest node (6.9.1 and 7.1.0), and it doesn't work. When I look at specs for these versions, seems like it should work.

Here is error message I got in my console:

$ node src/lru-cache.js 

/home/admin/experiments/ct/src/lru-cache.js:2

let { aa, ...o2 } = o1;

          ^^^

SyntaxError: Unexpected token ...

    at Object.exports.runInThisContext (vm.js:76:16)

    at Module._compile (module.js:542:28)

    at Object.Module._extensions..js (module.js:579:10)

    at Module.load (module.js:487:32)

    at tryModuleLoad (module.js:446:12)

    at Function.Module._load (module.js:438:3)

    at Module.runMain (module.js:604:10)

    at run (bootstrap_node.js:394:7)

    at startup (bootstrap_node.js:149:9)

    at bootstrap_node.js:509:3



$ node -v

v6.9.1

What's wrong with my configuration and how can I make it work? Thanks!

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Answer 1

The syntax you're using is called object rest properties. It isn't supported by Node.js yet; in fact, the only platform that currently supports it is Babel (see ES Next compatibility table).

ES6 destructuring assignment doesn't work in latest Node

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