main.js

/*
  String Challenge
  All Solutions Must Be In One Chain
  You Can Use Concatenate
*/

let a = "Elzero Web School";

// Include This Method In Your Solution [slice, charAt]
console.log(a.charAt(2).toUpperCase() + a.slice(3, 6)); // Zero

// 8 H
console.log(a.charAt(a.indexOf('h')).toUpperCase().repeat(8)); // HHHHHHHH

// Return Array
console.log(a.split(" ", 1)); // ["Elzero"]

// Use Only "substr" Method + Template Literals In Your Solution
console.log(`${a.substr(0, 6)} ${a.substr(-6)}`); // Elzero School

// Solution Must Be Dynamic Because String May Changes
console.log(a.charAt(0).toLowerCase() + a.slice(1, a.length - 1).toUpperCase() + a.charAt(a.length -1).toLowerCase()); // eLZERO WEB SCHOOl