/*

Description:

Consider an array 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

*/

function countSheeps(arrayOfSheeps) {

return arrayOfSheeps.filter(Boolean).length;

}