as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
write a function to count the occurances of a given character in a string.
user
def count_char(string, char):
    count = 0
    for c in string:
        if c == char:
            count += 1
    return count

print(count_char("hello world", "l"))

output: 3
assistant