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Book Overview & Buying
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Table Of Contents
The Rust Programming Handbook
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Now that we’ve explored how traits set shared behaviors, let’s move on to the next exciting concept: generics. Think of generics as a way to make your code adaptable, regardless of the types you’re working with, much like having a versatile tool that fits many jobs.
In computer science, this idea is known as parametric polymorphism, and you may have encountered it in action with collections such as Vec<i32> and Vec<String>. These collections employ the same logic for adding, removing, or accessing items, regardless of the data type contained within.
Thanks to generics, we can create functions and structs with placeholders for types, which means we write the code once and it’s ready to handle any data type you need. Isn’t that wonderful?
Let’s consider why generics can be so helpful. Imagine you’re working on a function that finds...