astral-plane – Make Me Engineer

What are the most common non-BMP Unicode characters in actual use? [closed]

November 7, 2022 by Tarik

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!

JavaScript strings outside of the BMP

July 11, 2022 by Tarik

Depends what you mean by ‘support’. You can certainly put non-UCS-2 characters in a JS string using surrogates, and browsers will display them if they can. But, each item in a JS string is a separate UTF-16 code unit. There is no language-level support for handling full characters: all the standard String members (length, split, … Read more