The function is an illustration of loops.
Loop instructions are used to repeat operations
The function in Python, where comments are used to explain each line is as follows:
#This defines the function
def exclamation(myStr):
  #This iterates through the string
  for i in range(len(myStr)):
    #This checks if the current character of the string is "i"
    if myStr[i] == "i":
      #If yes, this converts the string to a list
      s = list(myStr)
      #This replaces i with !
      s[i] = '!'
      #This gets the updated string
      myStr = "".join(s)
  #This returns the new string
  return myStr
   Â
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