JSFiddle - React, Tailwind, and code Playground

JavaScript

var arr1 = ["mike", "sue", "tom", "kathy", "henry"]; //arr1.length = 5
    var arr2 = ["howey", "jim", "sue", "jennifer", "kathy", "hank", "alex"]; //arr2.length = 7

    var commonValues = _.intersection(arr1, arr2);

    document.body.textContent = commonValues.join(", ");