Exclamation mark

Decimal: 33

Hex: 21

Symbol

Decimal

Hexadecimal

0x21

Character

JavaScript (from decimal)

String.fromCharCode(33); // "!"

JavaScript (to decimal)

"!".charCodeAt(0); // 33

Python

chr(33)  # "!"
ord("!")  # 33

C/C++

char c = 33;  // '!'
int code = '!';  // 33

Symbol characters include punctuation marks, mathematical operators, and special characters used in programming and text formatting.

Double quote

Hash/pound

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Percent sign

Ampersand

Single quote