day-1/script.ts


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

import fs from "fs";

const input = fs.readFileSync("./input.txt").toString();

const result = input
  .split("\n")
  .slice(0, -1)
  .map((line) => line.match(/\d/g))
  .reduce((acc, value) => {
    if (!value)
      throw new Error(`The string must contain at least one digit ${value}`);
    return acc + Number(value[0] + value[value.length - 1]);
  }, 0);

console.log({ result });