javascript-lab/L2P2.html at main · Al05ex/javascript-lab · GitHub

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<!DOCTYPE html>
   <html>
   <head>
   <meta charset="utf-8">
   <title>JavaScript current day and time</title>
    <h1>
		Program to perform intersection between two arrays using Set <br> intersection contains the elements of array1 that are also in array2 <br>
		const array1 = [1, 2, 3, 5, 9]; <br>
		const array2 = [1, 3, 5, 8]; <br>
	</h1>
   </head>
   <body>

<script type="text/javascript">
function performIntersection(arr1, arr2) {

// converting into Set
const setA = new Set(arr1);
const setB = new Set(arr2);

let intersectionResult = [];
for (let i of setB) {

	if (setA.has(i)) {
		intersectionResult.push(i);
		}
	}
	return intersectionResult;
}
const array1 = [1, 2, 3, 5, 9];
const array2 = [1, 3, 5, 8];

const result = performIntersection(array1, array2);
console.log(result);
</script>
</body>
</html>