readline0618.js

/* let readline = require('readline-sync');
let name = readline.question('What\'s your name?');
console.log('Hello ', name, '!');

while (true) {
  let key = readline.keyIn('Press a key, \'q\' to exit!');
  console.log('You pressed', key);
  if (key === 'q') {
    break;
  }
}
*/
/*  let stdin = process.stdin;
stdin.setRawMode(true);
stdin.resume();
stdin.setEncoding('utf-8');
stdin.on('data', (key) => {
  console.log('You pressed', key);
  if (key === 'q') {
    process.exit();
  }
});

*/
console.log('Kiscica');

/* setInterval(() => {
  console.log('nagycica');
}, 100); // 1 másodpercenként meghivja

let time = 1000;
const fun = () => {
  if (time > 0) {
    time -= 100;
    console.log(time);
    setTimeout(fun, time); // time ideig várakozik
  } else {
    console.log('Time is up!');
  }
};

fun();

const counter = (count) => {
  console.log(count);
  if (count === 0) {
    return 0;
  }
  count -= 1;
  counter(count);
};

counter(10);

const arrMin = (index, arr) => {
  if (index === 0) return arr[0];
  return Math.min(arr[index], arrMin(index - 1, arr));
};

let arr = [1, 5, 2, -10, 3];
console.log(arrMin(arr.length - 1, arr));

const fibo = (n) => {
  if (n === 0) {
    return [0];
  }
  if (n === 1) {
    return [0, 1];
  } else {
    let tomb = fibo(n - 1);
    tomb.push(tomb[tomb.length - 1] + tomb[tomb.length - 2]);
    return tomb;
  }
};

console.log(fibo(5));

*/

const generate2d = (n, m) => {
  let arr = new Array(n);
  for (let i = 0; i < n; i++) {
    arr[i] = new Array(m);
  }
  return arr;
};

const fill2D = (arr) => {
  let num = 0;
  for (let x = 0; x < arr.length; x++) {
    for (let y = 0; y < arr[x].length; y++) {
      arr[x][y] = num++;
    }
  }
};

let arr = generate2d(5, 5);
fill2D(arr);
console.log(arr);

/* let table = require('table');
let output = table.table(arr);

console.log(output); */

const contains = (element, arr) => {
  for (let i = 0; i < arr.length; i++) {
    for (let j = 0; j < arr[i].length; j++) {
      if (element === arr[i][j]) {
        return true;
      }
    }
  }
  return false;
};

console.log(contains(-1, arr));