It's still valid since UTF-8, the current de-facto standard, grants the same encoding for the first 128 characters. Here, we can see how Ruby transforms each character in the string into 7 bits.ĪSCII was one of the first ways of encoding these characters. If you have a string in your Ruby program, it's translated internally as a sequence of bytes. However, first, we need to understand what they mean and, more importantly, how we can detect them before they happen.Īn additional benefit of understanding encoding errors is that you'll have deeper knowledge of how encoding works and what can go wrong. The good news is that encoding errors are fixable. If you're reading this, it's very likely that you spend a lot of time writing software, so we can try to get ready for encoding errors and leave the cars for later. How do you resolve this error?įor many of us, string encoding is like car maintenance we only think about them when they break. So, you investigate the problem, discover that it's an encoding error, and see some odd characters, such as "�" in the error message. You have thought about all the edge cases of your code, writing unit and integration tests for them, and yet, when you least expect it, you see a notification that an exception occurred.
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