Nullish Coalescing Assignment Operator (??=) In Nodejs

I'm trying to use the Nullish coalescing assignment operator (??=) in NodeJS, it is possible? const setValue = (object, path, value) => { const indices = { first: 0,

Solution 1:

The error means your version of Node does not yet have support for the ??= operator.

Check out the versions which support it on node.green:

Solution 2:

It's possible for node version v15.14+.

The rewrite for something like

a.greeting ??= "hello"

in node <v15.14 is:

a.greeting = a?.greeting ?? 'hello'

Maybe it does help someone :]

Solution 3:

The node version you are using doesn't support the nullish coalescing assignment operator.

Solution 4:

You could replace logical nullish assignment ??=

o[k] ??= isFinite(i + 1in kk ? kk[i + 1] : last) ? [] : {}

with an assignment with logical OR ||

o[k] = o[k] || (isFinite(i + 1in kk ? kk[i + 1] : last) ? [] : {})