<pre class="shiki github-dark shaku"><code>/** * @param {Array&lt;(arg: any) =&gt; any&gt;} funcs * @return {(arg: any) =&gt; any} */// Pipe function accepts array of functions.// functions after execution have their own environment with value.// (first) =&gt; (second) =&gt; first * second// second value will be passed by us inside funcs.reduce. function pipe1(funcs) {	return (value) =&gt; {		return funcs.reduce((acc, item) =&gt; {			return item(acc)		}, value)	}}function pipe2(funcs) {	// store value executed function	let _value = 0	return (value) =&gt; {		for (let fn of funcs) {			// update value everytime new function get's executed			_value = fn(_value !== 0 ? _value : value)		}		// handle case if funcs doesn't have any arguments		return funcs.length ? _value : value	}}</code></pre>

2 EXAMPLES of Pipe function with EXPLANATION

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,…