doc promise node code example

Example 1: promp node js

const readline = require("readline");

const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
});

rl.question("What is your name ? ", function saveInput(name) {
  console.log(`His name is ${name}`);
  rl.close();
});

rl.on("close", function saveInput() {
    console.log("\nBYE BYE !!!");
    process.exit(0);
});

Example 2: node js util promisify

const util = require('util');
const fs = require('fs');

const stat = util.promisify(fs.stat);

async function callStat() {
  const stats = await stat('.');
  console.log(`This directory is owned by ${stats.uid}`);
}