Fun with Anagrams

fun_with_anagrams.js

/**
 * 
 *** Fun with Anagrams ***
 * 
 * Given an array of strings, remove each string that is an anagram of an earlier string, then return the remaining array in sorted order.

 * Example
 * str = ['code', 'doce', 'ecod', 'framer', 'frame']
 * 
 * 'code' and 'doce' are anagrams. Remove 'doce' from the array and keep the first occurrence 'code' in the array.
 * 'code' and 'ecod' are anagrams. Remove 'ecod' from the array and keep the first occurrence 'code' in the array.
 * 'code' and 'framer' are not anagrams. Keep both strings in the array.
 * 'framer' and 'frame' are not anagrams due to the extra 'r' in 'framer'. Keep both strings in the array.
 * Order the remaining strings in ascending order: ['code','frame','framer'].
 * 
**/

/*
 * Complete the 'funWithAnagrams' function below.
 *
 * The function is expected to return a STRING_ARRAY.
 * The function accepts STRING_ARRAY text as parameter.
 */

function funWithAnagrams(text) {
  let result = text;
  let counter = 0;

  do {
    let current = counter;
    let next = current + 1;

    if (isAnagram(result[current], result[next])) {
      result.splice(next, 1);
      counter > 0 ? counter-- : counter;
    } else {
      counter ++;
    }
  } while (counter < result.length)

  return result.sort();
}

const isAnagram = (str1, str2) => {
  return !!str1 && !!str2 
    && str1.length === str2.length 
    && str1.split('').sort().join('') === str2.split('').sort().join('');
}

function main() {
    let text = ['code', 'doce', 'ecod', 'framer', 'frame'];

    const result = funWithAnagrams(text);

    console.log(result);
}

main();