3.3 Bean Counting (Eloquent JavaScript Solutions)

3-3 Eloquent Javascript Solutions.js

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

function countChar(s, c) {
  var count = 0; 
  for (var i = 0; i < s.length; i += 1) {
    if (s.charAt(i) === c)
      count += 1;
  }
  return count;
}

console.log(countBs("BBC"));
// → 2
console.log(countChar("kakkerlak", "k"));
// → 4

function countChar(s, c) {
var count = 0;
for (var i = 0; i < s.length; i += 1) {
if (s.charAt(i) === c)
count += 1;
}
return count;
}
function countBs(s){
return countChar(s,"B");
}
console.log(countBs("BBC"));
// → 2
console.log(countChar("kakkerlak", "k"));
// → 4