RosettaCodeData/Task/Anagrams/JavaScript/anagrams-2.js

23 lines
761 B
JavaScript

var fs = require('fs');
var dictionary = fs.readFileSync('unixdict.txt', 'UTF-8').split('\n');
//group anagrams
var sortedDict = dictionary.reduce(function (acc, word) {
var sortedLetters = word.split('').sort().join('');
if (acc[sortedLetters] === undefined) { acc[sortedLetters] = []; }
acc[sortedLetters].push(word);
return acc;
}, {});
//sort list by frequency
var keysSortedByFrequency = Object.keys(sortedDict).sort(function (keyA, keyB) {
if (sortedDict[keyA].length < sortedDict[keyB].length) { return 1; }
if (sortedDict[keyA].length > sortedDict[keyB].length) { return -1; }
return 0;
});
//print first 10 anagrams by frequency
keysSortedByFrequency.slice(0, 10).forEach(function (key) {
console.log(sortedDict[key].join(' '));
});