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function oddOccurences(input) { let wordsMap = new Map; let wordsArr = input.split(" "); wordsArr = wordsArr.map(word => word.toLowerCase()); wordsArr.forEach(word => { let count = 1; if (!wordsMap.has(word)) { wordsMap.set(word, count); } else { let currentQuantity = wordsMap.get(word); currentQuantity++; wordsMap.set(word, currentQuantity); } }); let arr = [...wordsMap]; let line = ""; arr.forEach(element => { if (element[1] % 2 != 0) { line += element[0] + " "; } }); console.log(line); }
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