simple2.md

new javascript interview challenges.

Challange 0: Tell the truth

Write a function that returns the number of truthy values in a given array. Return 0 if given an empty array.

// Examples
countTruthy([true, false, false, true, false]) // ➞  2
countTruthy([false, false, false, false]) // ➞  0
countTruthy([]) // ➞ 0

Challenge 1: Count Syllables

Create a function that counts the number of syllables a word has. Each syllable is separated with a dash `-`.

Examples

numberSyllables("buf-fet") ➞ 2
numberSyllables("beau-ti-ful") ➞ 3
numberSyllables("mon-u-men-tal") ➞ 4
numberSyllables("on-o-mat-o-poe-ia") ➞ 6

Challenge 2: The Fizz Buzz Test

Write a method that returns an array of all the numbers from 1 to an integer argument. But for multiples of three use “Fizz” instead of the number and for the multiples of five use “Buzz”. For numbers which are multiples of both three and five use “FizzBuzz”.

Examples

fizzBuzz(10) ➞ [1, 2, "Fizz", 4, "Buzz", "Fizz", 7, 8, "Fizz", "Buzz"]
fizzBuzz(15) ➞ [1, 2, "Fizz", 4, "Buzz", "Fizz", 7, 8, "Fizz", "Buzz", 11, "Fizz", 13, 14, "FizzBuzz"]

Challenge 3: Reverse the Odd Length Words

Given a string, reverse all the words which have odd length. The even length words are not changed.

Examples

reverseOdd("Bananas") ➞ "sananaB"

reverseOdd("One two three four") ➞ "enO owt eerht four"

reverseOdd("Make sure uoy only esrever sdrow of ddo length")
➞ "Make sure you only reverse words of odd length"

Challenge 4: Find the Second Largest Number

Create a function that takes an array of numbers and returns the second largest number.

Examples

secondLargest([10, 40, 30, 20, 50]) ➞ 40

secondLargest([25, 143, 89, 13, 105]) ➞ 105

secondLargest([54, 23, 11, 17, 10]) ➞ 23