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




/**
 * @param {any[]} arr1
 * @param {any[]} arr2
 * @returns {any[]}
 */
function getIntersection(arr1, arr2) {
 const set = new Set(arr1);
 return arr2.filter(item =&gt; {
 const hasElement = set.has(item);
 if(hasElement) {
 set.delete(item);
 }
 return hasElement;
 });
}




</code></pre>

solution with set

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 …