I'm a bit confused about the naming conventions for TextEncoder and TextDecoder in JavaScript. It seems to me that TextEncoder should actually be called TextDecoder instead. The reason for this is that the TextEncoder takes a stream of code points and converts it into a stream of bytes, which I think should be called 'decoding'. I'm curious if anyone can shed some light on the logic behind this naming decision or point me to resources that explain the history of these terms.
3 Answers
I see where you're coming from! But actually, TextEncoder is named that way because it encodes text into bytes, which makes sense. Each media type uses consistent terminology: you encode something into a byte format and decode it back into a readable form. Plus, strings can have varying memory representations depending on the environment, so it's all about how the data gets transformed into machine-readable forms.
Actually, the 'code' in encode/decode refers to the way information is formatted into bytes, not just code points. For example, TextEncoder specifically outputs in UTF-8, but TextDecoder can handle many types of encodings like windows-1252 and big5. Think of it like encrypting and decrypting: you encode to convert to a different format and decode to revert back. If the encoding is wrong, that can lead to issues like mojibake, which is pretty wild!
The whole encoding/decoding thing is kind of a concept we've had for ages, you know? The prefixes make sense when you think about it: 'enc' implies converting to a different format, while 'dec' is about retrieving the original. It's like humanity's collective experience with data transformation! It's not just one person who defined these terms but a progression of ideas. Just like the way we handled information since ancient times.
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