Need a hint :)


#1

<PLEASE USE THE FOLLOWING TEMPLATE TO HELP YOU CREATE A GREAT POST!>

<Below this line, add a link to the EXACT exercise that you are stuck at.>

<In what way does your code behave incorrectly? Include ALL error messages.>

<What do you expect to happen instead?>

```python

def reverse(text):
for char in text:

INSTRUCTIONS:

Define a function called reverse that takes a string textand returns that string in reverse. For example: reverse(“abcd”) should return “dcba”.

You may not use reversed or [::-1] to help you with this.

You may get a string containing special characters (for example, !, @, or #).

QUESTIONS:
Do i have to use some index stuff?
if that´s the case, how can i add the character in certain index on a new string?

<do not remove the three backticks above>

#2

You can easily use [-1:] which is the easiest way. Can you explain your second question a little bit more than you have.


#3

@maverb
So the task is
quote=“maverb, post:1, topic:204185”]
reverse(“abcd”) should return “dcba”.
[/quote]
or in other words

define a function reverse() which takes 1 PARAMETER
as an ARGUMENT you should expect a string Value like "abcd"
Within in the FUNCTION-BODY you should write code insuch a way
that the function reverse() return’s a string Value "dcba"
google search criteria
python how to pickup every character of a string site:stackoverflow.com
python how split a string in characters site:stackoverflow.com

then having a character you will have to build a new_string
python how concatenate characters site:stackoverflow.com

As stackoverflow.com is used by programmers to find =discussions / opinions= on a topic
python.org is the site for the Documentation on Python.
search like
concatenate characters site:python.org

+++ function talk
Please read the Function talk
and concentrate on

  • parameter
  • parameter being a =local variable= within function body
  • argument
  • calling a function
  • usage of the return statement

the FUNCTION talk

def myFunc( param1, param2):
    # Begin of =myFunc= FUNCTION-BODY
    # this =myFunc= function- has 2 PARAMETERS param1 and param2
    # param1 and param2 PARAMETERS are used 
    # as -local- VARIABLES throughout the =myFunc= FUNCTION-BODY
    print( param1 + " and " + param2 )
    #End of =myFunc= FUNCTION-BODY

If you want to call/execute the myFunc function
you will have to add a pair of parentheses to myFunc
like
myFunc()
As the myFunc function was defined
as having 2 parameters
you have to provide 2 arguments
in our case 2 string VALUES “Alena” and "Lauren"
like
myFunc(“Alena”,“Lauren”)

some quotes from the outer-world:

argument is the value/variable/reference being passed in,
parameter is the receiving variable used within the function/block

OR

“parameters” are called “formal parameters”,
while “arguments” are called “actual parameters”.

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
++++ function with 1 parameter using return-statement

def myFunction( param1 ):
    # //Begin of =myFunction= FUNCTION-BODY
    # //=myFunction= function has 1 PARAMETER param1
    # //this param1 PARAMETER is used as a -local- VARIABLE
    # //throughout the =myFunction= FUNCTION-BODY
    return param1;
    # //End of FUNCTION-BODY

You have defined a myFunction function
which takes 1 parameter param1
this param1 parameter is used
as a variable throughout the =myFunction= FUNCTION-BODY.

If you want to call/execute this myFunction function
and this myFunction function was defined
as having 1 parameter param1
you will have to provide 1 argument
in our case a “number VALUE” 4
myFunction( 4 )

some quotes from the outer-world:

argument is the value/variable/reference being passed in,
parameter is the receiving variable used within the function/block

OR

“parameters” are called “formal parameters”,
while “arguments” are called “actual parameters”.

============================================

As you are using the return-statement in your myFunction function
you will only get a return-value no-display.
You can however capture this return-value in a variable
and then use the print-method to do a display.

theResult = myFunction( 4 )
print theResult

OR directly

print myFunction( 4 )

#4

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