Solve JavaScript Exercises: Calculator, Palindromes, Fibonacci, getTheTitles, findTheOldest

[swhasans]

Brief description of each exercise:

• Calculator: Implement a calculator that can perform basic arithmetic operations such as addition, subtraction, multiplication, and division.
• Palindromes: Write a function that checks whether a given string is a palindrome (reads the same forwards and backwards), returning true or false.
• Fibonacci: Create a function that generates the Fibonacci sequence up to a given number of terms.
• getTheTitles: Write a function that takes an array of objects representing books and returns an array of book titles.
• findTheOldest: Implement a function that finds the oldest person from an array of objects representing individuals with their birth and death years.