Card Holder name generator

cardHolderName.js

/**
  This a simple function to create the Holder Name of a Credit Card, mainly based
  on the pattern addopted at NuBank
**/

const names = [
  "Vini Lins",
  "Mateus Andrade da Costa Santos",
  "Bruno Dal Santos",
  "Helena Strada Franco de Souza",
  "Pedro de Alcântara Francisco António João Carlos Xavier de Paula Miguel Rafael Joaquim José Gonzaga Pascoal Cipriano Serafim",
  "Willy Mondzelewski",
  "Pedro Bullo Junior"
];

const holderName = name =>
  name.length < 21
    ? name.toUpperCase()
    : name
        .split(" ")
        .reduce((prev, actual, index, arr) => {
          if (index === 0) {
            return actual;
          }

          if (actual.length < 3 && /\b[a-z]+\s*/g.test(actual)) {
            return prev;
          }

          if (index !== arr.length - 1) {
            return `${prev} ${actual.charAt(0)}`;
          }

          return `${prev} ${actual}`;
        }, "")
        .toUpperCase();

names.forEach(n => console.log(holderName(n)));