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Expressions

A Rust program is (mostly) made up of a series of statements:

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There are a few kinds of statements in Rust. The most common two are declaring a variable binding, and using a ; with an expression:

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Blocks are expressions too, so they can be used as values in assignments. The last expression in the block will be assigned to the place expression such as a local variable. However, if the last expression of the block ends with a semicolon, the return value will be ().

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