<pre class="language-javascript"><code class="language-javascript">

/**
 * @param {Array&lt;(arg: any) =&gt; any&gt;} funcs 
 * @return {(arg: any) =&gt; any}
 */
function pipe(funcs) {
 // your code here
 return x =&gt; funcs.reduce((res,func) =&gt; func(res), x)
}

</code></pre>

Straightforward reduce

what is Composition? It is actually not that difficult to understand, see @dan_abramov 's explanation. Here you are asked to create a pipe() function,…