Node 5.10 spread operator not working

Question

According to the docs, the latest node (Node 5+) should support the spread operator by default, like so:

const newObj = {
        ...oldObj,
        newPrope         


        

Answer 1

What you tried to use is called object spread and is not part of the es2015 specification. Node only supports the regular spread in function calls and array literals. Unfortunately not even array destructuring is supported yet, although they link to the MDN page which describes both structuring and destructuring use of ....

You can use Object.assign instead:

const newObj = Object.assign({}, oldObj, {
  newProperty: 1
});