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Comment by jimrandomh | Hacker News Reader

There might be reasons to use `bc` like this if you don't know the type of `age` and it could be a non-numeric string. Buuuuut a programming language where a simple integer-comparison leads to two subprocesses is going to be slower than the slowest existing programming languages, by orders of magnitude.

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Right. And the check/type validation shouldn't happen on comparison, but on assignment and only if it is dynamically assigned.

Am I missing something, like `bc` can parse `one + two`?

Input sanitizing should be done before trying to hand inputs over to be summed.

The amber source of that is [here](https://docs.amber-lang.com/basic_syntax/basic_syntax) and contains:

    // Define variables
    let name = "John"
    let age = 30
    
    // Display a greeting
    echo "Hello, my name is {name}"
    
    // Perform conditional checks
    if age < 18 {
        echo "I'm not an adult yet"
    } else {
        echo "I'm an adult"
    }

So there is no input, everything is known statically. No sanitation required. Any additional checks done by amber in the bash code is unnecessary.

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