JS. Почему Codewars выдает ошибку?

Question

[Islam777]

Вот задание:
Consider an array/list of sheep where some sheep may be missing from their place. We need a function that counts the number of sheep present in the array (true means present).

For example,

[true, true, true, false,
true, true, true, true ,
true, false, true, false,
true, false, false, true ,
true, true, true, true ,
false, false, true, true]

The correct answer would be 17.

Hint: Don't forget to check for bad values like null/undefined

Вот мой код:

const countSheeps = arrayOfSheep => {
  let totalSheep = arrayOfSheep.reduce((accum, sheep) => {
    if (sheep === undefined || sheep === null) sheep === 0;
    return accum + sheep;
  }, 0);
  
  return totalSheep;
};

Что выводит TEST:

Что выводит ATTEMPT:

Answer 1

[Александр]

Для начала это.

- if (sheep === undefined || sheep === null) sheep === 0;
+ if (sheep === undefined || sheep === null) sheep = 0;

Comments

[Islam777]

Чертт. Как я мог