JSFiddle - React, Tailwind, and code Playground

JavaScript

var words="value.eight.seven.six.five.four.three"
var wordsArr = words.split(".");
var line1 = wordsArr.slice(0,Math.floor(wordsArr.length/2)).join("."); 
var line2 = wordsArr.slice(Math.floor(wordsArr.length/2)).join(".");
console.log(line1);
console.log(line2);