Anadromes: Difference between revisions

=={{header|JavaScript}}==

<syntaxhighlight lang="JavaScript">

const fs = require('fs');

fs.readFile("words.txt", "utf8", (err, data) => {

if (err) {

console.error("Error reading the file:", err);

return;

}

const words = data.split(/\r?\n/); // This regex splits on both Unix and Windows line endings

const wordSet = new Set(words);

const seenWords = new Set();

const wordList = [];

for (let word of wordSet) {

if (word.length > 6) {

const reversedWord = word.split('').reverse().join('');

const wordPair = `${word}:${reversedWord}`;

const reversedWordPair = `${reversedWord}:${word}`;

if (wordSet.has(reversedWord) && reversedWord !== word && !seenWords.has(reversedWordPair)) {

wordList.push([word, reversedWord]);

seenWords.add(wordPair); // Store seen words as a string pair to make it easy to check

}

}

}

console.log(wordList.length);

wordList.sort((a, b) => a[0].localeCompare(b[0])).forEach(([word, reversedWord]) => {

console.log(`${word.padStart(9)} ${reversedWord}`);

});

});

</syntaxhighlight>

{{out}}

<pre>

17

amaroid diorama

degener reneged

deifier reified

deliver reviled

dessert tressed

desserts stressed

deviler relived

dioramas samaroid

gateman nametag

leveler relevel

pat-pat tap-tap

redrawer rewarder

reknits stinker

relever reveler

reliver reviler

revotes setover

sallets stellas

</pre>