Promises - AllSettled Method

    // Promise.allSettled() vs Promise.all() and Promise.race()
    
    let p1 = new Promise((resolve, reject) => {
      setTimeout(resolve, 100, 1);
    });
    let p2 = new Promise((resolve, reject) => {
      setTimeout(resolve, 100, 2);
    });
    let p3 = new Promise((resolve, reject) => {
      reject(3);
    });
    let p4 = new Promise((resolve, reject) => {
      setTimeout(reject, 100, 4);
    });
    
    Promise.race([p1, p2, p3, p4])
      .then((resp) => {
        console.log('FIRST of four responses', { resp });
      })
      .catch((err) => {
        console.error(`CATCH ERROR ${err}`);
      });
    
    Promise.all([p1, p2, p3, p4])
      .then(([r1, r2, r3, r4]) => {
        console.log('ALL FOUR responses... if all were good');
      })
      .catch((err) => {
        console.error(`CATCH ERROR ${err}`);
      });
    
    Promise.allSettled([p1, p2, p3, p4])            // waits until all Promises are finished, regardless of whether they resolved or rejected
      .then((responses) => {
        console.log('finished with ALL FOUR');
        responses.forEach((resp, index) => {
          console.log(index, { resp });
        });
      })
      .catch((err) => {
        console.error(`CATCH ERROR ${err}`);
      });