JSFiddle - React, Tailwind, and code Playground

by rootd

JavaScript

String.prototype.toJadenCase = function (str) {
console.log(this)

  str = str.toLowerCase().split(' ');
  
  for (let i = 0; i < str.length; i++) {
  str[i] = str[i].charAt(0).toUpperCase() + str[i].substring(1);
  }
  
  return str = str.join(' ');
};

console.log(String.prototype.toJadenCase('Вышел я как-то погулять'))