JSFiddle - React, Tailwind, and code Playground

JavaScript

function findSecretMessage(paragraph) {
  arr = paragraph.toLowerCase().split(' ');
  console.log(arr);
  ms='';
 
  for (i=0; i < arr.length; i++){
    if(arr[i].match(/\./) != null) {
    	arr[i] = arr[i].slice(0, -1);
    }
  }

  alert('yes');
}

var paragraph = 'This is a test. this test is fun.';
findSecretMessage(paragraph);