<pre class="shiki github-dark shaku"><code>/** * @param {Array&lt;any&gt;} promises - notice input might have non-Promises * @return {Promise&lt;any[]&gt;} */function all(promises) { // your code here if (promises.length === 0) return Promise.resolve([]); const _promises = promises.map(item =&gt; item instanceof Promise ? item : Promise.resolve(item)); let res_list = []; let rejected = false; return new Promise((resolve, reject) =&gt; { _promises.forEach(promise =&gt; { promise.then(res =&gt; { res_list.push(res); if (!rejected &amp;&amp; res_list.length === promises.length) { resolve(res_list); } }).catch(err =&gt; { rejected = true; reject(err); }) }) })}</code></pre>

This is my accepted solution

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> The Promise.all() method takes an iterable of promises as an input, and returns a single Promise that resolves to an array of the results of the inp…