JS: String.prototype.charCodeAt

By Xah Lee. Date: . Last updated: .

s.charCodeAt (pos)

Return the code unit of char at pos in s.

[see JS: Character, Code Unit, Codepoint]

If this character has Unicode codepoint less than 2^16, then, result is identical to s.codePointAt(pos).

// char “a” has codepoint 97
console.log ( "abc".charCodeAt (0) === 97 );
// true

Note, you probably want codePointAt instead.

[see JS: String.prototype.codePointAt]

JS Character

  1. Character, Code Unit, Codepoint
  2. Character To/From Codepoint
  3. String.fromCodePoint
  4. String.fromCharCode
  5. String.prototype.charAt
  6. String.prototype.charCodeAt
  7. String.prototype.codePointAt
  8. Convert Decimal/Hex
  9. Unicode Escape Sequence

JS String

  1. String Overview
  2. Template String ⭐
  3. Char, Code Unit, Codepoint
  4. String Escape Sequence
  5. Unicode Escape Sequence
  6. String to Number
  7. Encode URL, Escape String
  8. Format Number
  9. Source Code Encoding
  10. Allowed Characters in Identifier
  11. String Object
  12. String.prototype
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