Tags
A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
Python is an interpreted, general-purpose high-level programming language whose design philosophy emphasizes code readability. Use the python tag for all Python related questions. If you believe your …
14581 questions
Java (not to be confused with JavaScript) is a class-based, object-oriented, strongly typed, reflective language and run-time environment (JRE). Java programs are compiled to bytecode and run in a vir…
10796 questions
C# is a multi-paradigm, managed, garbage-collected, object-oriented programming language created by Microsoft in conjunction with the .NET platform. Use this tag for questions related to C#. In case a…
9891 questions
JavaScript is primarily a language focused on web development. Being a monopoly on the front end and having Node on the back end. Use this tag for questions regarding vanilla JavaScript; optionally ta…
9635 questions
C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language. This tag should be used for any question which requires knowledge or expertise with the C++ progra…
8901 questions
Performance is a subset of Optimization: performance is the goal when you want the execution time of your program or routine to be optimal.
7409 questions
to your question to indicate that you are new to the language of your code. This will often be taken into consideration by reviewers when assessing your code.
7235 questions
Python 3 is the latest version of the Python programming language and was formally released on December 3rd, 2008. Use this tag along with the main python tag to denote programs that are meant to be r…
5046 questions
An algorithm is a sequence of well-defined steps that define an abstract solution to a problem. Use this tag when your issue is related to algorithm design.
4922 questions
PHP is a widely-used, general-purpose scripting language that is especially suited for web development.
4339 questions
Object-oriented programming is a programming paradigm using "objects": data structures consisting of data fields and methods together with their interactions.
3717 questions
C is a general-purpose computer programming language used for operating systems, games, and other high performance work and is clearly distinct from C++. It was developed in 1972 by Dennis Ritchie for…
3665 questions
Programming challenges are off-site challenges meant to offer programmers educational experiences while testing their abilities.
3185 questions
A string is a sequence of characters. It is commonly used to represent text or a sequence of bytes. Use this tag along with the appropriate programming language being used.
2843 questions
A JavaScript Library that simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development.
2414 questions
An array is an ordered data structure consisting of a collection of elements (values or variables), each identified by one (single dimensional array, or vector) or multiple indexes.
2050 questions
For questions requesting reviews of game development code.
1836 questions
HTML (Hyper Text Markup Language) is the standard content markup language of the web. It is an open standard developed and maintained by W3C (World Wide Web Consortium).
1798 questions
Code that is written to the 2011 version of the C++ standard, sometimes known by its pre-publication name of "C++0x". Use in conjunction with the 'c++' tag.
1716 questions
Ruby is a multi-platform, open-source, dynamic, object-oriented, interpreted language created by Yukihiro Matsumoto (Matz) in 1993.
1639 questions
Multi-threading is how work performed by a computer can be divided into multiple concurrent streams of execution (generally referred to as threads).
1558 questions
Structured Query Language is a language for interacting with relational databases. Read the tag wiki's guidelines for requesting SQL reviews: 1) Provide context, 2) Include the schema, 3) If asking ab…
1472 questions
A design pattern is a general reusable solution to a commonly occurring problem in software design.
1408 questions
Parsing is the process of analysing a string of symbols, either in natural language or in computer languages, conforming to the rules of a formal grammar.
1292 questions
Visual Basic for Applications (VBA) is an event-driven programming language first introduced by Microsoft in 1993 to give Excel 5.0 a more robust object-oriented language for writing macros and automa…
1289 questions
Python 2 is the predecessor of Python 3 and its last version, Python 2.7 was formally released on July 3, 2010. Use this tag along with the main python tag to denote programs that are meant to be run …
1249 questions
.NET is a software framework supporting a multi-language paradigm and supporting language interoperability. .NET applications are executed in a virtual machine (CLR) which provides a few important ser…
1201 questions
Sorting is the process of applying some order to a collection of items.
1126 questions
MySQL is an open-source, relational database management system. If your PHP code uses MySQLi, use the MySQLi tag instead.
1110 questions
Microsoft Excel is a commercial spreadsheet application written and distributed by Microsoft.
1096 questions
Recursion in computer science is a method of problem solving where the solution to a problem depends on solutions to smaller instances of the same problem.
1084 questions
Haskell is a purely functional programming language, featuring static typing, lazy evaluation, and monadic effects. The primary implementation is GHC, a high-performance compiler with a runtime suppor…
1070 questions
DO NOT USE THIS TAG. It is in the process of being eliminated. If your question is just about performance, use the [performance] tag.
1064 questions
CSS, short for Cascading Style Sheets, is a language used to control the presentation of HTML and XML documents including colors, layout, and fonts.
1031 questions
A linked list is a data structure in which the elements contain references to the next (and optionally the previous) element.
1025 questions
DateTime objects in many programming languages describe an instant in time, expressed as a date and time of day. Use on questions about reviewing code involving date/time logic.
1023 questions