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Solution of missingLetters that also returns consecutively missed letters #59

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Solution of missingLetters that also returns consecutively missed letters #59

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21 changes: 21 additions & 0 deletions session3/index_extra.js
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Original file line number Diff line number Diff line change
Expand Up @@ -113,6 +113,27 @@ function missingLetters(str) {
}
console.log(missingLetters("abcdefghijklmnopqrstuvwxyz"))

// SOLUTION by VeNoM for missingLetters
// this solution also returns consecutively missed letters
const missingLettersByVeNoM = (str = '') => {
let charCode = str.charCodeAt(0)
let missing = []

str.split('').forEach((char) => {
const currCharCode = char.charCodeAt(0)
if (charCode !== currCharCode) {
while (charCode < currCharCode) {
missing.push(String.fromCharCode(charCode))
charCode++
}
}
charCode++
})

return missing.join('')
}

console.log(missingLettersByVeNoM('abcdeghjkn')) // here 'lm' are consecutively missed, so output: film

// CHALLENGE 6: EVEN & ODD SUMS
// Take in an array and return an array of the sums of even and odd numbers
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