Define a function that takes an integer argument and returns a logical value true or false depending on if the integer is a prime. Per Wikipedia, a prime number ( or a prime ) is a natural number greater than 1 that has no positive divisors other than 1 and itself.
You are going to be given a non-empty string. Your job is to return the middle character(s) of the string. If the string’s length is odd, return the middle character. If the string’s length is even, return the middle 2 characters.
A Narcissistic Number (or Armstrong Number) is a positive number which is the sum of its own digits, each raised to the power of the number of digits in a given base. In this Kata, we will restrict ourselves to decimal (base 10).
You might know some pretty large perfect squares. But what about the NEXT one?
ATM machines allow 4 or 6 digit PIN codes and PIN codes cannot contain anything but exactly 4 digits or exactly 6 digits.
A pangram is a sentence that contains every single letter of the alphabet at least once. For example, the sentence “The quick brown fox jumps over the lazy dog” is a pangram, because it uses the letters A-Z at least once (case is irrelevant).Given a string, detect whether or not it is a pangram. Return True if it is, False if not. Ignore numbers and punctuation
Write a function that accepts an array of 10 integers (between 0 and 9), that returns a string of those numbers in the form of a phone number.
Write a function that takes in a string of one or more words, and returns the same string, but with all words that have five or more letters reversed (Just like the name of this Kata). Strings passed in will consist of only letters and spaces. Spaces will be included only when more than one word is present.
Complete the solution so that it splits the string into pairs of two characters. If the string contains an odd number of characters then it should replace the missing second character of the final pair with an underscore (’_’).