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Moving vowels and consonants using JavaScript
Problem
We are required to write a JavaScript function that takes in a string of English alphabets. Our function should construct a new string and every consonant should be pushed forward 9 places through the alphabet. If they pass 'z', start again at 'a'. And every vowel should be pushed by 5 places.
Example
Following is the code −
const str = 'sample string'; const moveWords = (str = '') => { str = str.toLowerCase(); const legend = 'abcdefghijklmnopqrstuvwxyz'; const isVowel = char => 'aeiou'.includes(char); const isAlpha = char => legend.includes(char); let res = ''; for(let i = 0; i < str.length; i++){ const el = str[i]; if(!isAlpha(el)){ res += el; continue; }; let pos; const ind = legend.indexOf(el); if(isVowel(el)){ pos = (21 + ind) % 26; }else{ pos = (ind + 9) % 26; }; res += legend[pos]; }; return res; }; console.log(moveWords(str));
Output
bvvyuz bcadwp
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