Side Note: Underscores in Numbers

This is just a little readability hack in Rust. Quick, tell me if 80000000 is eighty million, eight million, or eight hundred million. It’s hard, isn’t it? How about 80,000,000? Much easier. Separating numbers like that is a great usability improvement. Rust allows you to do this, except you have to use an underscore instead of a comma. For example:

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