Find the number of true in the array.

Create a function trueCount which returns the number of true values in the array.

Examples

trueCount([false, true, false, true, false]) ➞ 2

trueCount([true, true, true, true]) ➞ 4

trueCount([]) ➞ 0

Solution:

const count_true = r => r.filter(Boolean).length

or

function trueCount(arr) {
      const trueCount = arr.reduce((total, item)=>total+Number(item), 0)
      return trueCount;
}