Variables in Rust: Let Me Be Immutable

Variables in Rust: Let Me Be Immutable

So today, I ran head-first into a Rust design decision that made me pause and go, “Wait… really?”

In C#, I can declare a variable with var and change it later. No fuss. In Rust? Not so fast. Your variables are frozen solid if you don’t explicitly ask for mutability. Welcome to Day 4: the world of let, mut, and what happens when your muscle memory meets a strict compiler.

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