1. /**
    2.  * @param {Array<any>} promises - notice that input might contains non-promises
    3.  * @return {Promise<Array<{status: 'fulfilled', value: any} | {status: 'rejected', reason: any}>>}
    4.  */
    5. function allSettled(promises) {
    6.   if (promises.length === 0) {
    7.     return Promise.resolve([])
    8.   }
    10.   const results = []
    11.   let completed = 0
    12.   return new Promise((resolve) => {
    13.     for (let i = 0; i< promises.length; i++) {
    14.       Promise.resolve(promises[i])
    15.         .then(value => {
    16.           results[i] = { status: 'fulfilled', value }
    17.         })
    18.         .catch(reason => {
    19.           results[i] = { status: 'rejected', reason }
    20.         })
    21.         .finally(() => {
    22.           completed++
    23.           if (completed === promises.length) {
    24.             resolve(results)
    25.           }
    26.         })
    27.     }
    28.   })
    29. }
    function allSettled(promises) {
    // Using promise all
    return Promise.all(promises.map(p => Promise.resolve(p).then((value) => {
        return {
            status: 'fulfilled',
            value
        };
    }, (reason) => {
        return {
            status: 'rejected',
            reason
        };
    })));
}