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Return types with implemented traits

Return types with implemented traits - Rust Tutorial

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Return types with implemented traits

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- [Instructor] We've used traits to set bounds on the generic data types that can be passed as arguments into a function. Now, let's look at how we can use traits in the other direction to set bounds on the type of data that can be returned by a function. Let's define a function that can return any data type as long as it implements the display trait. Since we'll be referencing the display trait for this program, we'll first need to import the format module at the top of the code. Then we'll define a new function named get displayable. It doesn't have any input parameters, but it will have a return value. We'll specify a return type that can be anything as long as it implements display. And we do that by typing impl display. This type of syntax for a parameter using the implementation keyword can be used in some situations as an alternative to the trait bound syntax we saw in the previous videos. For simplicity, let's…

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