Consonant value

Problem

Calculate the word value of any word. Word value is defined as the sum of the values of the characters of any consecutive consonant string.

Solution

Steps:

• split word in substrings of consonants
• value each letter in a substring
• sum the values in a substring
• find substring with highest sum

split word in substrings of consonants

splitCons = str => str.split(/a|e|i|o|u/).filter(subStr => subStr != "")

split() doesn’t only accept string values but also regular expressions.

A small bug occured when there’s 2 consecutive vowels. In that case you’ll end up with an empty string in your array of strings. Hence the filter().

value each letter in a substring

valueLetters = str => str.split("").map(char => char.charCodeAt(0) - 96)

Each character corresponds to a number in the UTF-16. You can use this to convert letters to numbers.

sum the values in a substring

sum = arrNumbers => arrNumbers.reduce((a,b) => a + b)

Summing can be easily done with reduce(). You provide reduce() with a function which has an accumulator and a current value as arguments.

highest

You could try to find the highest value with a combination of reduce() and Math.max(). However, Math.max() also accepts rest parameters as shown in the example.

Alternative solutions

Most solution seem to have followed the split, value and sum pattern. Also most used reduce() for finding the maximal value but I think Math.max(...) is nicer.

Open questions

Is it a good idea to compose these functions in a solve() function?