Example 1: Perform Intersection Using Set
// program to perform intersection between two arrays using Set
// intersection contains the elements of array1 that are also in array2
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);
Output
[1, 3, 5]
In the above program, an intersection is performed between array1 and array2.
- The array elements are converted into
Setelements using thenew Set()constructor. - The