// Get the last word of a string.
let str = "What I hate most in the world is fanaticism.";
// 1) The slice() method: without Considering the punctuation marks
str.slice(str.lastIndexOf(' ')); // => 'fanaticism.'
// 2) the spit() method():
let arr = str.split(' ');
arr[arr.length - 1]; // => 'fanaticism.'
// Considering the punctuation marks at the end of the string
str.match(/(w+)W*$/)[1]; // => 'fanaticism'