Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community!
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial
Ken Okiebisu
9,673 PointsConcatenation not working for dictionaries?
I am wanting to add Rocky Road to the dictionary of iceCream flavors. var iceCream = ["CC": "Chocolate Chip", "AP": "Apple Pie", "PB": "Peanut Butter"] iceCream = iceCream + ["RR": "Rocky Road"]
I tried doing this and it is not working. Does this mean that concatenation does not work for dictionaries but work for arrays?
2 Answers

Jonathan Hector
5,225 PointsTry doing the following and see what you get
iceCream ["RR"] =["Rocky Road"]
// OR
iceCream.append("RR" : "Rocky Road")

Frode Dyrdal
2,671 PointsHello,
Try .updateValye
iceCream.updateValue("Rocky Road", forKey: "RR")