JS: String.prototype.charAt

By Xah Lee. Date: . Last updated: .

s.charAt(pos)

Return a string of length 1 that's the char at pos of s.

Return empty string if index is out of bound.

console.log ( "abc".charAt(1) === "b" ); // true
// if index is out of bound, return empty string
console.log ( "abc".charAt(9) === "" );
// true

Reference

ECMAScript 2015 §Text Processing#sec-string.prototype.charat

Character Topic

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

JS String

  1. String Overview
  2. Template String
  3. Char, Code Unit, Code Point
  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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