utils.js

const fs = require("fs");

module.exports = {
  getUnique: data => new Set(data),
  trimData: data => data.map(item => item.trim()),
  calcArraySum: array => array.reduce((a, b) => a + b),
  maxArrayNum: array => array.reduce((a, b) => Math.max(a, b), -Infinity),
  calcManhattandistance: (a, b) =>
    Math.abs(a[0]) - Math.abs(b[0]) + (Math.abs(a[1]) - Math.abs(b[1])),
  transformMatrix: matrix => {
    let [row] = matrix;
    return row.map((value, column) => matrix.map(row => row[column]));
  },
  modDataNewline: data => {
    const formatData = data.split("\n").map(item => parseInt(item.trim(), 10));
    return formatData;
  },
  modDataNewlineStr: data => {
    const formatData = data.split("\n").map(item => item.trim());
    return formatData;
  },
  modDataBlanklines: data => {
    const formatData = data.split(/\n{2,}/g);
    return formatData;
  },
  modDataCommas: data => {
    const formatData = data.split(",").map(item => parseInt(item.trim(), 10));
    return formatData;
  },
  modDataBlanks: data =>{
    const formatData = data.map(item => item.split(" ").map(i => parseInt(i.trim(), 10)));
    return formatData;
  },
  modStringIntoNumbers: data => {
    const formatData = data.split("").map(item => parseInt(item.trim(), 10));
    return formatData;
  },
  readInput: path => {
    try {
      const data = fs.readFileSync(path, "utf8");
      return data;
    } catch (e) {
      console.log("Error:", e.stack);
    }
    return false;
  }
};