@bobince’s answer has (luckily) become a bit dated; you can now simply use var chars = Array.from( text ) to obtain a list of single-codepoint strings which does respect astral / 32bit / surrogate Unicode characters.
Short answer: it gives you the Unicode codepoint that starts at the specified index in String. i.e. the “unicode number” of the character at that position. Longer answer: Java was created when 16 bit (aka a char) was enough to hold any Unicode character that existed (those parts are now known as the Basic Multilingual … Read more
From the MDN page on charCodeAt: The charCodeAt() method returns an integer between 0 and 65535 representing the UTF-16 code unit at the given index. The UTF-16 code unit matches the Unicode code point for code points which can be represented in a single UTF-16 code unit. If the Unicode code point cannot be represented … Read more
For historical reasons. Originally, there was only U+2764 HEAVY BLACK HEART which the first applications that supported Emojis decided to render as a red heart. These early applications always rendered U+2764 as Emoji. Later it was realized that this was a bad idea and the variation selectors for Emojis were standardized. When additional heart emojis … Read more
The characters “U+” are an ASCIIfied version of the MULTISET UNION “⊎” U+228E character (the U-like union symbol with a plus sign inside it), which was meant to symbolize Unicode as the union of character sets. See Kenneth Whistler’s explanation in the Unicode mailing list.
If I understand your question correctly, you can do this. >>> s=”㈲” >>> s.encode(“unicode_escape”) b’\\u3232′ Shows the unicode escape code as a source string.
Emoji are now the most common non-BMP characters by far. 😂, otherwise known as U+1F602 FACE WITH TEARS OF JOY, is the most common one on Twitter’s public stream. It occurs more frequently than the tilde!