Static constructor gives syntax error in NodeJS

Question

I've been looking at this error for a long time and I just cannot wrap my head around it.

Here's the code:

class Instance {

    static {

    }

}

module.exports = Instance;

That is all there is. The class was full of stuff but I deleted them all because they are irrevelant. It's giving the same error with or without them.

The error:

    static {
           ^

SyntaxError: Unexpected token '{'
    at Object.compileFunction (node:vm:352:18)
    at wrapSafe (node:internal/modules/cjs/loader:1031:15)
    at Module._compile (node:internal/modules/cjs/loader:1065:27)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Function.Module._load (node:internal/modules/cjs/loader:822:12)
    at Module.require (node:internal/modules/cjs/loader:1005:19)
    at require (node:internal/modules/cjs/helpers:94:18)
    at Object.<anonymous> (path\to\project\index.js:1:18)
    at Module._compile (node:internal/modules/cjs/loader:1101:14)

I've used static constructors in the past and testing the same code somewhere else seems to work so I dont understand what the issue is here. Please help me.

SOLUTION: Updated Node to 16.13.1 and it now works. 16.7.0 wasnt enough.

I’m not sure static constructors exist in JS? stackoverflow.com/questions/35156270/… — evolutionxbox
– evolutionxbox, Commented Dec 19, 2021 at 14:08
The constructor is a property of the prototype object, you can't use "static" constructor. — Teemu
– Teemu, Commented Dec 19, 2021 at 14:09
I am talking about the initialization block developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… Edit: node version is 16.7.0 — kakahan
– kakahan, Commented Dec 19, 2021 at 14:10
It seems to be a ES2022 feature. I can’t find evidence that it’s been implemented in node yet (although I’m likely wrong) — evolutionxbox
– evolutionxbox, Commented Dec 19, 2021 at 14:11

Sandeep Patel · Accepted Answer · 2021-12-19 14:20:22Z

1

It is supported by Node 17.3.0. It is an ES2022 feature. This https://node.green/#ES2022 is a nice link to find ES feature compatibility in Nodejs. You will have to download the current version of Nodejs which is 17.3.0.

answered Dec 19, 2021 at 14:20

Sandeep Patel

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kakahan Over a year ago

This is the answer. However just updating to 16.13.1 fixed the issue for me.

Timir · Accepted Answer · 2024-05-31 17:06:15Z

0

This happened on my workspace too, but it was really a case of shooting myself in the foot with the workaround for another issue :)

To recover, I just ran echo PATH=${PATH} > ~/.huskyrc again. And yeah, I'm looking forward to not requiring workarounds.

answered May 31, 2024 at 17:06

Timir

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