JSFiddle - React, Tailwind, and code Playground

HTML

<ul id='lista'></ul>

JavaScript

var ParOuImpar = function(num){
    for (var i = 0; i < num.length; i++) {
        if ((num[i] % 2) == 0) {
            return "True";
        }
    }
    
    return "False";
}

testar([]);
testar([6, 6, 6]);
testar([1, 1, 1, 1, 1]);
testar([16, 1, 1, 1, 1]);
testar([6, 6, 6, 7]);
testar([16, 1, 1, 1, 1, 16]);

function testar(arr) {
    var pOuI = ParOuImpar(arr);
    var li = document.createElement("li");
    var teste = JSON.stringify(arr) + ": " + pOuI;
    li.appendChild(document.createTextNode(teste));
    document.getElementById('lista').appendChild(li);
}