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Change UTF-16 to UCS-2 in article.md #3322

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Change UTF-16 to UCS-2 in article.md #3322

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2 changes: 1 addition & 1 deletion 1-js/99-js-misc/06-unicode/article.md
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Expand Up @@ -46,7 +46,7 @@ JavaScript allows us to insert a character into a string by specifying its hexad

All frequently used characters have 2-byte codes (4 hex digits). Letters in most European languages, numbers, and the basic unified CJK ideographic sets (CJK -- from Chinese, Japanese, and Korean writing systems), have a 2-byte representation.

Initially, JavaScript was based on UTF-16 encoding that only allowed 2 bytes per character. But 2 bytes only allow 65536 combinations and that's not enough for every possible symbol of Unicode.
Initially, JavaScript was based on [UCS-2](https://en.wikipedia.org/wiki/Universal_Coded_Character_Set) encoding that only allowed 2 bytes per character. But 2 bytes only allow 65536 combinations and that's not enough for every possible symbol of Unicode.

So rare symbols that require more than 2 bytes are encoded with a pair of 2-byte characters called "a surrogate pair".

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