ASCII Character: Copyright sign

About the Copyright sign Character

ASCII code 169 (0xA9) represents the Copyright sign character in the extended ASCII table (128–255). It is a widely recognized symbol used in international commerce, intellectual property, or mathematical notation. The extended ASCII range builds upon the original 128-character ASCII set, adding accented letters, currency symbols, typographic marks, and mathematical symbols. These characters are defined by the Windows-1252 (CP-1252) encoding, which is a superset of ISO 8859-1 (Latin-1). In modern web development, UTF-8 encoding is preferred, but understanding extended ASCII remains important for legacy system compatibility and character encoding troubleshooting.

Encoding Details

Source Code Examples

// Character literal
let char = '©';
// Using char code
let char2 = String.fromCharCode(169);
// Unicode escape
let char3 = '\u00A9';

# Character literal
char = '©'
# Using chr()
char = chr(169)
# Using ord() to get code
code = ord('©')  # Returns 169

<!-- Direct character -->
©
<!-- HTML entity (numeric) -->
&#169;
<!-- Hex entity -->
&#xA9;

// Character literal
char c = '©';
// Using cast
char c2 = (char)169;
// To get code from char
int code = (int)'©';  // Returns 169

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