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![Nik Oaks](https://secure.gravatar.com/avatar/44895cf77189b5251b2b60e03099fa51?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Nik Oaks
8,056 PointsI never declared the prompt as an integer however my code still runs as it should.
my code: https://w.trhou.se/6ch1e3efp2 This isn't the first time this has happened. Now that I know a little more about how to change data types i'm confused why it works.
1 Answer
![Steven Parker](https://uploads.teamtreehouse.com/production/profile-photos/969492/micro_tool_chess_set_2.jpg)
Steven Parker
230,688 PointsSomeone happened to ask a very similar question just yesterday!
You're seeing an aspect of JavaScript called type coercion, which is essentially it converting the string into a number for you automatically. For more details on this mechanism, and a demonstration code snippet, see my answer to the previous question.
Nik Oaks
8,056 PointsNik Oaks
8,056 PointsAlso I forgot to add a floor so I did that and it still works fine,