Edit in JSFiddle

// Simple Arrow functions
let nums = [1,2,3,4];
let helloDiv = document.getElementById("Hello Arca Digital");
helloDiv.innerHTML = "Results:<br>";

// Iterate using the lambda expression:
nums.forEach((v) => {
    if (v % 2 === 0)
        helloDiv.innerHTML += v + " is an even number<br>";
});

<div id="Hello Arca Digital">
This is where results should appear.
</div>