These problems will use your knowledge of looping and conditionals, and we will build functions on top of that.
- Fork and clone this repository
- Solve the problems below in separate files, located in
js
- Run each file by including it in your html file
<script src="nameOfFile.js"/>
Define a function maxOfThree
that takes three numbers as arguments and returns the largest of them. Use the if-then-else construct available in Javascript.
Write a function isCharacterAVowel
that takes a character (i.e. a string of length 1) and returns true if it is a vowel and false, otherwise.
Define a function sumArray
and a function multiplyArray
that sums and multiplies (respectively) all the numbers in an array of numbers. For example, sumArray([1,2,3,4])
should return 10, and multiplyArray([1,2,3,4])
should return 24.
Write a function that takes an array of numbers, and returns the sum of each number multiplied by its index.
count += (number * index)
Define a function reverseString
that reverses a string. For example, reverseString("jag testar") should return the string "ratset gaj".
Write a function findLongestWord
that takes an array of words and returns the length of the longest word in the array.
Write a function that takes a string that finds out how many times a character occurs. For example, the string "apple" would print the following:
a - 1
p - 2
l - 1
e - 1
Hint: Loop through each letter, and increment the value to a key in an object. The key should be that object.
BONUS: Make sure that lower case letters and upper case letters count for the same character. Also, ignore spaces and punctuation.
Create a function to return true
or false
if a number passed in a prime number.
Using your isPrime()
function, create a function primes
that will return an array of all prime numbers up to a certain amount.
Write a function called merge
. The function should take two sorted arrays of numbers as input and return a merged array of the sorted numbers from the input. For example, if the input arrays were var arr1 = [3,6,11]; var arr2 = [2,4,5,8,9];
Then the returned array would be: [2,3,4,5,6,8,9,11]
.
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