require('readLine') in JavaScript showing error

When you bring your cursor to dots you can see message like this:

File is a CommonJS module; it may be converted to an ES module.

You can either use Quick Fix or change your import like this:

import readline from "readline";

Also, do not forget to add "type": "module", to your package.json

Edit

In your code you imported readline as rLine but while you are creating interface you used it as readline.createInterface() you should update your code like this:

import readline from "readline";

var rl = readline.createInterface(process.stdin, process.stdout);

rl.question("What is your name?\n", (answer) => {
  console.log(answer);
});