9. Write a JavaScript function that accepts two arguments, a string and a letter and the function will count the number of occu

Question

9. Write a JavaScript function that accepts two arguments, a string and a letter and the function will count the number of occurrences of the specified letter within the string.
Sample arguments : 'w3resource.com', 'o'
Expected output : 2 .

Answer 1

just make a loop that iterates through the string and check if the current character equals the second argument. If it is true, then add 1 to a variable storing the number of ocurrences. Once it iterates over the whole atring, return the variable.

Answer 2

function char_count(str, letter)
{
var letter_Count = 0;
for (var position = 0; position < str.length; position++)
{
if (str.charAt(position) == letter)
{
letter_Count += 1;
}
}
return letter_Count;
}

console.log(char_count('w3resource.com', 'o'));