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




/**
 * @param {any[]} arr1
 * @param {any[]} arr2
 * @returns {any[]}
 */
function getIntersection(arr1, arr2) {
 // your code here
 const a = new Set(arr1)
 const b = new Set(arr2)

 return [...a].filter(a =&gt; b.has(a))
}

// getIntersection([], [1,2,3])


</code></pre>

Set.protoype.has()

Given two arrays, find the intersection(items occur in both arrays) 1. arrays are not sorted, and might have duplicates. 2. you can modify the arrays …