Table of Contents
Trait Definition
Return to Trait declaration
Definitions vs Declarations, Definitions and Declarations (computer programming): Type definition - User-defined type definition, Variable definition - Constant definition, Class definition - Object definition, Constructor definition - Destructor definition, Struct definition - Record definition, Function definition - Method definition, Lambda definition - Anonymous function definition, Enumerator definition, Pointer definition, Generic definition - Template definition, Interface definition - Protocol definition - Trait definition, Namespace definition - Package definition - Module definition - Alias definition - Import definition - Export definition, Macro definition. Programming terms. (navbar_definition)
- Snippet from Wikipedia: Trait (computer programming)
In computer programming, a trait is a concept used in programming languages which represents a set of methods that can be used to extend the functionality of a class.
Language Specifics
1. Bash Scripting
2. C Language
3. C++
4. C#
5. Clojure
6. COBOL
- COBOL trait definition on IBM.com/docs
7. Dart
8. Elixir
9. Fortran
- Fortran trait definition on IBM.com/docs
10. Go
11. Groovy
12. Haskell
13. IBM REXX
- REXX trait definition on IBM.com/docs
14. IBM JCL
- JCL trait definition on IBM.com/docs
15. Java
16. JavaScript
17. Kotlin
18. PHP
19. PowerShell
20. Python
21. Ruby
22. Rust
23. Scala
24. Swift
25. Microsoft T-SQL
26. TypeScript
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- Snippet from Wikipedia: Declaration (computer programming)
In computer programming, a declaration is a language construct specifying identifier properties: it declares a word's (identifier's) meaning. Declarations are most commonly used for functions, variables, constants, and classes, but can also be used for other entities such as enumerations and type definitions. Beyond the name (the identifier itself) and the kind of entity (function, variable, etc.), declarations typically specify the data type (for variables and constants), or the type signature (for functions); types may also include dimensions, such as for arrays. A declaration is used to announce the existence of the entity to the compiler; this is important in those strongly typed languages that require functions, variables, and constants, and their types to be specified with a declaration before use, and is used in forward declaration. The term "declaration" is frequently contrasted with the term "definition", but meaning and usage varies significantly between languages; see below.
Declarations are particularly prominent in languages in the ALGOL tradition, including the BCPL family, most prominently C and C++, and also Pascal. Java uses the term "declaration", though Java does not require separate declarations and definitions.
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