Unicode: Code Point (Char ID)

What is Code Point

Code Point is a integer number that is a unique ID for a character in unicode.

Code point starts at 0.

Code Point is represented either in decimal or Hexadecimal.

Code Point may be non-printable

A Code Point may be non-printable. For example, space, non-breaking space, word joiner, ASCII control character (e.g. Null, Form Feed, Horizontal Tab, Bell), right to left mark, surrogate pair, etc.

• ASCII Characters
• Unicode: Surrogate Pair
• Unicode: Byte Order (Endianness)
• Unicode: BOM, Byte Order Mark
• Unicode: Variation Selector

Standard Notation for Code Point

The standard notation for code point is “U+” followed by its code point in Hexadecimal. e.g.

U+3B1

How to Find a Character's Code Point

• Unicode Search 🔍
• Python: Get Unicode Name, Code Point
• JS: String.prototype.codePointAt (Char → ID)
• Emacs: find char name, font, position, code point, encoding, etc

How to Find a Character, Given Its Code Point

• Unicode Search 🔍
• Python: Get Unicode Name, Code Point
• JS: String.fromCodePoint (ID → Char)
• Emacs: Insert Unicode Character