[

Left square bracket

Decimal: 91

Hex: 5B

Symbol

Decimal

Hexadecimal

0x5B

Character

JavaScript (from decimal)

String.fromCharCode(91); // "["

JavaScript (to decimal)

"[".charCodeAt(0); // 91

Python

chr(91)  # "["
ord("[")  # 91

C/C++

char c = 91;  // '['
int code = '[';  // 91

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

Exclamation mark

Double quote

Hash/pound

Dollar sign

Percent sign

Ampersand