Wordle solver Node.js example

index.js

#!/usr/bin/env node
const readline = require("node:readline");

async function guess(feedbacks) {
  // You can use `console.error` for debugging.
  console.error(feedbacks);

  // Write your solver!
  return "count";
}

/**
 * Wordle solver interface
 *
 * STDIN: response from the Wordle
 * STDOUT: word to input to the Wordle
 * STDERR: you can output any value for debugging
 */
async function main() {
  const rl = readline.createInterface({
    input: process.stdin,
    crlfDelay: Infinity,
  });
  const feedbacks = [];
  let word = await guess([]);
  console.log(word); // the first word
  for await (const line of rl) {
    switch (line) {
      case "NOT_IN_WORD_LIST":
        throw new Error("You should guess another word");
      default: {
        const response = line.trim().split(",");
        if (response.every((r) => r === "correct")) {
          break;
        }
        feedbacks.push({ response, word });
        word = await guess(feedbacks);
        console.log(word); // the second and subsequent words.
      }
    }
  }
}

main();

package.json

{
  "name": "@your-scope/wordle-solver",
  "version": "1.0.0",
  "publishConfig": {
    "access": "public"
  },
  "bin": "./index.js"
}