In what language does and - hash - three - nine - semicolon (') represent the apostrophe? I had some website data extracted in JSON format where some of the user comments had apostrophe which were replaced by '.
So, what representation it is? I can not even google it as Google searches for apostrophe and not for and - hash - three - nine - semicolon.
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The answer is
It's HTML character references for encoding a character by its decimal code point
Look at the ASCII table here and you'll see that 39 (hex 0x27, octal 47) is the code for apostrophe
Source: Stackoverflow.com