Working with a string, how to implement it?

Question

JavaScript

At the input there is a sentence, it ends with a dot. Any length.
Input example: "Hello world!"
At the output: "rivetP irm!"
+ Possibility to add any lowercase character or a letter at the end of a word
Input example: "Hello world"
Output: "rivetP98 irm98"
How to implement this in JavaScript?

Answer 1

const src = 'Привет мир!';
const suffix = '98';
const srcArr = src.split(' ');
const reversed = srcArr.map(el => el.split('').reverse().join(''));
const target = reversed.map(el => el+suffix).join(' ');
console.log(target);

or

const src = 'Привет мир!';
const suffix = '98';
const target = src.split(' ').map(el => el.split('').reverse().join('')+suffix).join(' ');
console.log(target);