Functions are reusable blocks of code that redact a appointed task. For example if we want to make a program to add two numbers, after that we can create a Rust function to add numbers. So now, we do reuse this same function whensoever we add two numbers.
Making a function in Rust helps partition our code into smaller blocks and makes our code look cleaner and easier to Feel.
Not only in Rust Program, however functions are also one of the core building blocks of any programming language.