CODEWITHSUNDEEP
javascriptfunctionscope
Stefano Tartaglia
Stefano Tartaglia

Reputation: 1

Variable coming back undefined Javascript

My return variable keeps coming back undefined. Can someone please explain why? as far as I can tell it should be in scope.

var countBs = function(word) {
  var count = 0;
  for (var i = 0; i < word.length; i++){
    if (word.charAt[i] == 'B'){
      count += 1;
      return count;
    };
  };
};

console.log(countBs('BBABBAB'))

Upvotes: 0

Views: 122

Answers (1)

jh314
jh314

Reputation: 27792

You need to return count at the end of the function, and use .charAt(i):

var countBs = function (word) {
  var count = 0;
  for (var i = 0; i < word.length; i++){
    if (word.charAt(i) == 'B'){
      count += 1;
    };
  }
  return count;
}

Upvotes: 1

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