Functional Programming: Return & The Every Method Challenge

JavaScript
1

So, I realize my initial mistake was not returning the IIFE function and every method. Can someone please explain why returning the “currentValue > 0” line isn’t enough in and of itself?

function checkPositive(arr) {
  // Add your code below this line
  arr.every(function(currentValue) {
      return currentValue > 0; 
  });
  // Add your code above this line
}
checkPositive([1, 2, 3, -4, 5]);

// running tests
checkPositive([1, 2, 3, 4, 5]) should return true.
// tests completed

Here’s the correct answer.

function checkPositive(arr) {
  // Add your code below this line
  return arr.every(function(currentValue) {
      return currentValue > 0; 
  });
  // Add your code above this line
}
checkPositive([1, 2, 3, -4, 5]);

//Submit & go to the next challenge!
2

Because FCC checks the return value of the function ‘checkPositive’, by doing it your way, it returns undefined and the actual result gets garbage collected.

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