Rsa97

listToArray(arrayToList([1, 2, 3])); // Array(3) [ 3, 2, 1 ]

const list = {
  value: 2,
  rest: {
    value: 3,
    rest: null,
  },
};
prepend(1, list);
/* 
Object {
  value: 1,
  rest: Object {
    value: 3,
    rest: Object {
      value: 2,
      rest: null
    }
  }
}
*/

const arrayToList = (arr, idx = 0) => ({
  value: arr[idx],
  rest: idx === arr.length - 1
          ? null
          : arrayToList(arr, idx + 1)
});
const listToArray = (list) => (
  list.rest === null
    ? [list.value]
    : [list.value, ...listToArray(list.rest)]
);
const prepend = (value, rest) => ({ value, rest });
const nth = (list, idx) => (
  idx === 0
    ? list.value
    : (
      list.rest === null
        ? undefined
        : nth(list.rest, idx - 1)
    )
);

const arrayToList = (arr) => {
  const list = null;
  for (let i = arr.length - 1; idx >= 0; idx -= 1) {
    list = { value: arr[idx], rest: list };
  }
  return list;
};
const listToArray = (list) => {
  const arr = [];
  while (list !== null) {
    arr.push(list.value);
    list = list.rest;
  }
  return arr;
};
const prepend = (value, rest) => ({ value, rest });
const nth = (list, idx) => {
  while (list !== null) {
    if (idx === 0) {
      return list.value;
    }
    idx -= 1;
    list = list.rest;
  }
};

const test = (x) => { console.log(x); return false; };
if (test(1) && test(2)) {
  console.log('???');
}

const words = ['Азбука', 'Ананас', 'Зелень'];
const letters = 'аБ'.toLowerCase().split('');
const result = words.filter(
  (word) => {
    const lWord = word.toLowerCase();
    return letters.every((letter) => lWord.includes(letter))
  }
);
console.log(result);
// Array [ "Азбука" ]

[0, 1, 2, 3, 4].map(
  (shift) => {
    const date = new Date();
    date.setDate(date.getDate() + shift);
    return date.toLocaleDateString('en-CA');
  }
);
// Array(5) [ "2022-03-28", "2022-03-29", "2022-03-30", "2022-03-31", "2022-04-01" ]

const date = new Date();
const dates = [];
for (i = 0; i < 5; i += 1) {
  dates.push(date.toLocaleDateString('en-CA'));
  date.setDate(date.getDate() + 1);
}
console.log(dates);
// Array(5) [ "2022-03-28", "2022-03-29", "2022-03-30", "2022-03-31", "2022-04-01" ]

onStart() {
  let idx = 0;
  const timer = setInterval(
    () => {
      this.step = this.myList[idx];
      idx += 1;
      if (idx >= this.myList.length) {
        clearInterval(timer);
      }
    },
    1000,
  );
}

const reverseArray = (arr) =>
  arr.reduceRight((acc, item) => (acc.push(item), acc), []);

const reverseArrayInPlace = (arr) => {
  for (let i = 0, j = arr.length - 1; i < j; i += 1, j -= 1) {
    [arr[i], arr[j]] = [arr[j], arr[i]];
  }
};

const removeTodoFromStorage = (id) =>
  localStorage.setItem(
    'todoList',
    JSON.stringify(
      JSON
        .parse(localStorage.getItem('todoList') ?? '[]')
        .filter((item) => item.id !== id),
    )
  );

const findLastInRangeIdx = (arr, from, to) => 
  arr.reduce(
    (acc, item, idx) => (item > from && item < to ? idx : acc),
    -1,
  );

const chars = [' ', '#'];
const size = 8;
str = '';
for (let i = 0; i < size; i++) {
  for (let j = 0; j < size; j++) {
    str += chars[(i + j) % 2];
  }
  str += '\n';
}
console.log(str);