Is there a walrus operator in Node.Js?

Question

In Python3.8 There is new operator called walrus which can assign new variables inside a condition. Is there something similar to it in Node.Js ?

my_var = 5
if (result := my_var == 5):
    print(result)

Answer 1

Assign and compare as one expression. To make it work in strict mode, and avoid linter complaints, add parentheses to the assignment.

const my_var = 5;
let result;
if ((result = my_var) === 5) {
  console.log(result);
}

https://eslint.org/docs/rules/no-cond-assign#except-parens

Answer 2

There's no need for a separate operator, assignment is already an expression in Javascript:

"use strict";
var my_var = 5;
var result;
if (result = my_var == 5){
  console.log(result)
}