5BEAT THE BUS: TRACKING LOCATION WITH MAPS AND SENSORS
In Chapters 3 and 4, we used variables to store and process information, which allowed us to track and report data to users. In the “Fruit Loot” and “Multiplication Station” apps, we created variables that hold one value at a time, like the game score, number of fruits dropped, and percentage of multiplication problems correct.
But imagine how much more powerful our apps would be if we could store and manipulate multiple values in a single variable! For example, we could display a game’s top 10 scores or allow users to choose from a list of 50 states, without needing to create a different ...
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