fromCodePoint

fromCodePoint(integer codePoint) → string string

Returns the single-character string whose unicode codepoint is codePoint: fromCodePoint(65) returns "A". It is the inverse of codePointAt.

Codepoints above 65535 give characters such as emojis: fromCodePoint(128040) returns "🐨".

fromCodePoint(65)                // "A"
fromCodePoint(233)               // "é"
fromCodePoint(9835)              // "♫"
fromCodePoint(128040)            // "🐨"
fromCodePoint(codePointAt("é"))  // "é"
fromCodePoint(-1)                // null
fromCodePoint(0x110000)          // null

String.fromCodePoint(65)       // "A"
String.fromCodePoint(128040)   // "🐨"

chr(65)       # 'A'
chr(128040)   # '🐨'

Parameters

• codePoint: The unicode codepoint, from 0 to 1114111 (0x10FFFF), except 55296 to 57343 (0xD800 to 0xDFFF), which are reserved for surrogate halves.

Return

• string: The character, or null if codePoint is not a valid codepoint.

Note

• A codepoint that is negative, above 1114111 or between 55296 and 57343 returns null.
• A character above 65535 counts for 2 in length and takes two indexes for codePointAt and charAt.
• In JavaScript, String.fromCodePoint throws a RangeError outside 0 to 1114111, and chr throws a ValueError in Python.
• Costs 6 operations. See also codePointAt and charAt.