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Cheri Castro
226 PointsIn challenge task 2 of 2, step one is, graded as correct then in step two, it states that step one isn't correct.
Step one, make a variable name, make it equal to your name. name="Cheri" the check for this answer come back as correct. Step two, make a variable subject, make it equal to "Treehouse loves " and then add the variable. subject="Treehouse loves " += name Now it tells me that the step one answer is no longer correct. Why?
name="Cheri"
subject="Treehouse loves " += name
6 Answers
Steven Parker
231,236 PointsThe "+=" is the addition assignment operator, you would not use it when creating a new variable but it can be handy when adding to one that already exists.
And the "+" operator is used for simple concatenation.
Here are examples of using both, the final result is the same either way:
language = "Python"
job = "I write " + language
language = "Python"
job = "I write "
job += language
Steven Parker
231,236 PointsThat can be confusing until you get used to the fact that any syntax error invalidates the entire script and causes the re-validations to fail.
In this case it's caused by having two assignment operators on the second line. You probably intended to join the strings together with "+", but you have "+=" instead.
Daniel Marin
8,021 PointsHi, It needs fixing you are using += you should use only the + sign:
name="Cheri"
subject="Treehouse loves " + name
Cheri Castro
226 PointsThank you, but the video states that we are supposed to use the += when combining. I tried just the plus and when I ask it to be checked it states that it is wrong. I guess, I'm still lost.
Cheri Castro
226 PointsOk, I just tried it again and now it says it's correct. This still leaves me confused because previously when I tried that same thing (the first go round for that challenge it kept coming back as wrong, so then I tried several variations and then rewatched the video (a few times) and that's where I saw he says it's supposed to be the += but now, it's not. So, I guess I'll go back and rewatch the video again because now I'm still confused with how it's supposed to go.
Cheri Castro
226 PointsOk, I think I understand that, thank you.