AOC 2023

01.js

import fs from 'fs';

const input = fs.readFileSync('./01/input.txt', { encoding: 'utf8' });

const injectNumbers = (text, name, value) => {
  while (text.search(name) > -1) {
    const index = text.search(name);
    text = [text.slice(0, index + 1), value, text.slice(index + 1)].join('');
  }
  return text;
}

const textMap = { one: '1', two: '2', three: '3', four: '4', five: '5', six: '6', seven: '7', eight: '8', nine: '9' };

export default async () => {
  const inputArray = input.split('\n');
  
  const inputArrayNumbersOnly = inputArray.map(text => {
    Object.keys(textMap).forEach(key => {
      const value = textMap[key];
      text = injectNumbers(text, key, value);
    });
    const textNumbersArray = text.replace(/\D/g, '').split('');
    const firstAndLastTextNumbers = `${textNumbersArray[0]}${textNumbersArray[textNumbersArray.length - 1]}`;
    return Number(firstAndLastTextNumbers);
  });
  
  let sum = 0;
  inputArrayNumbersOnly.forEach(num => sum += num);
  
  console.log('Sum:', sum);
}

02.js

// todo