JSFiddle - React, Tailwind, and code Playground

JavaScript

var stringA = 'abcde';
var stringB = 'abc.defgh';

console.log(stringA.split('.').length); // 1 (array)
console.log(stringB.split('.').length); // 2 (array)
console.log(stringB.split('.')[1].length); // dá 5, porque está a medir a string