CODE EXAMPLE FOR JAVASCRIPT

how to make recursive function

// Basic Recursive function
// It works in all languages but lets try with C

// lets make a greedy strlen

int my_recursive_strlen(int index, char *str) // note that index must be set at 0 to work in this case
{
  if (str[index] == '')
    return index + 1;
  else
    return my_recursive_strlen(index++); // i send index + 1 to next function call
  // this increment index in our recursive stack
}

void main(void)
{
  printf("length of Bonjour = %d
", my_recursive_strlen(0, "bonjour"));
}

//output : length of Bonjour = 7

// Recursive functions are greedy and should be used in only special cases who need it
// or who can handle it.

// a function become recursive if she calls herself in stack