Check if is fibonacci

In mathematics, the Fibonacci sequence or series is the following infinite sequence of natural numbers: 0,1,1,2,3,5,8,13,21,34,55,89,144,233,377,610,987,1597 ... where f (0) = 0, f (1) = 1 and f (n) = f (n-1) + f (n-2). Code a program (in javascript or typescript) that solves for any number in the Fibonacci series.

Pertenece a la secuencia Fibonacci

Words Counter

Given a given input text, Code a program (in javascript or typescript) that displays the number of repetitions of each word. Sample text: "Hi how are things? How are you? Are you a developer? I am also a developer"

Fizz Buzz

Code a program (in javascript or typescript) that displays the numbers from 1 to 100 on the screen, substituting the multiples of 3 for the word "fizz", the multiples of 5 for "buzz" and the multiples of both, that is, the multiples of 3 and 5, by the word "fizz buzz".