AllStarCC#18.js

/* Instructions:
Create a function that accepts a string and a single character, and returns an integer of the count of occurrences the 2nd argument is found in the first one.

If no occurrences can be found, a count of 0 should be returned.

("Hello", "o")  ==>  1
("Hello", "l")  ==>  2
("", "z")       ==>  0
str_count("Hello", 'o'); // returns 1
str_count("Hello", 'l'); // returns 2
str_count("", 'z'); // returns 0
Notes
The first argument can be an empty string
In languages with no distinct character data type, the second argument will be a string of length 1
*/
//Answer
function strCount(str, letter) {
  let array = str.split("");
  let count = 0; // Initialize a count variable to keep track of occurrences
  for (let char of array) {
    // Use 'char' instead of 'a' for clarity
    if (letter === char) {
      // Compare 'letter' with each character of 'array'
      count++; // Increment count when 'letter' matches the current character
    }
  }
  return count; // Return the count of occurrences of 'letter'
}

console.log(strCount("Hello", "o")); // Output: 1