]

Right square bracket

ASCII Code: 93•Category: brackets

The right square bracket (]) closes arrays, completes list structures, and finishes mathematical groupings, providing essential closure for data organization and computational syntax across programming and mathematical contexts.

Technical Details

ASCII Code: 93
HTML Entity: ]
Hexadecimal: 0x5D
Binary: 01011101
Octal: 135

Usage & Examples

Programming

char symbol = ']'; // ASCII 93

HTML/Web

] or ]

Common Uses

bracketsquareclosearrayprogrammingindexingcompletionlistmathematical

How to Type This Character

Windows

Alt Code:

Hold Alt and type93 on numeric keypad

Character Map:

Search "Character Map" in Start menu

Mac

Character Viewer:

Press Ctrl +Cmd +Space

Copy & Paste:

Easiest method - copy from this page!

💡 Pro tip: The fastest way is to bookmark this page or copy the character from our ASCII library!

Related Characters

About the Right square bracket

Array Completion

Essential for closing array declarations, list definitions, and indexed expressions in programming languages. Every opened square bracket requires proper closure to maintain syntactic correctness and prevent compilation errors.

Data Structure Integrity

Completes JSON arrays, database queries, and structured data formats that power modern web applications. Proper bracket closure ensures data integrity in APIs, configuration files, and data interchange systems.

Mathematical Balance

Provides closure for mathematical expressions using square bracket grouping, maintaining proper nesting hierarchy in complex formulas and ensuring computational accuracy in mathematical software.

Syntax Validation

Critical for automated parsing systems, code editors, and compilers that rely on balanced brackets to interpret and execute instructions correctly. Missing closing brackets cause immediate syntax errors.

History of the Right square bracket

1600s

Mathematical Completion

Mathematicians established the requirement for balanced square brackets in algebraic expressions, creating precise notation standards that enabled complex mathematical communication.

1800s

Editorial Standards

Academic publishers standardized closing square brackets for editorial insertions and corrections, ensuring clarity and consistency in scholarly text manipulation.

1950s-1960s

Programming Syntax

Programming languages made balanced square brackets mandatory for array operations, establishing compiler requirements that define modern software development practices.

1990s

Web Development

Internet technologies integrated square bracket closure for HTML attributes, form arrays, and web programming, making bracket balancing essential for web development.

2000s-Present

Data Processing

Big data systems, JSON APIs, and modern frameworks made proper bracket closure critical for data processing, machine learning, and scientific computing applications.

Cultural Impact

The right square bracket became the symbol of structural completion in the digital age, ensuring that every opened data structure, array, or mathematical expression reaches proper closure in computational systems.

Usage Examples

Array Closure

Example

numbers = [1, 2, 3]; list[index]; matrix[row][column]

Completing array declarations and nested indexing operations

JSON Arrays

Example

["apple", "banana", "orange"], [true, false, null]

Closing JSON array structures for web APIs and data storage

Mathematical Expressions

Example

[a + b] × [c - d], interval [0, 1], matrix [A][B]

Completing mathematical groupings and interval notation

Editorial Text

Example

"The president [Washington] established precedent." [sic]

Closing editorial insertions and scholarly annotations