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[JS][7kyu] Quicksum #5212

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[JS][7kyu] Quicksum #5212

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31 changes: 31 additions & 0 deletions codewars/7kyu/quicksum/koronya.js
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Original file line number Diff line number Diff line change
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// [JS][7kyu] Quicksum
// quicksum
// https://www.codewars.com/kata/569924899aa8541eb200003f/train/javascript


const UPPER_ALPHABET = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
const indexOfUpperAlphabet = (char) => UPPER_ALPHABET.indexOf(char) + 1
const isUpperAlphabetOrSpace = (char) => {
return UPPER_ALPHABET.includes(char) || char === ' '
}

const quicksum = (packet) => {
if (packet.split('').some((char) => !isUpperAlphabetOrSpace(char))) {
return 0
}

return packet.split('').map((char, index) => indexOfUpperAlphabet(char) * (index + 1)).reduce((sum, curr) => sum + curr, 0)
}





// quicksum("ACM") === 46
// quicksum("MID CENTRAL") === 650
// quicksum("BBC") === 15
// quicksum("???") === 0
// quicksum("axg ") === 0
// quicksum("234 234 WEF ASDF AAA 554211 ???? ") === 0
// quicksum("A C M") === 75