nodejs wait for somtimr code example

Example 1: node wait 10 seconds

async function init() {
  console.log(1);
  await sleep(1000);
  console.log(2);
}

function sleep(ms) {
  return new Promise((resolve) => {
    setTimeout(resolve, ms);
  });
}

// one liner
let sleep = ms => new Promise(resolve => setTimeout(resolve, ms));

Example 2: how to wait for a function to finish in javascript

function doFirst() {
  return new Promise(function(resolve, reject) {
    //do a thing
      if (){
          return reject(value);
  	  }
      resolve(value);
    });
  });
}

async function doSecond() {
    var outputValue = await doFirst();
    console.log(outputValue);
}