# expression-oriented programming language

> programming language where every (or nearly every) construction is an expression and thus yields a value

**Wikidata**: [Q5421696](https://www.wikidata.org/wiki/Q5421696)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Expression-oriented_programming_language)  
**Source**: https://4ort.xyz/entity/expression-oriented-programming-language

## Summary
An expression-oriented programming language is a programming language in which every (or nearly every) construction is treated as an expression that yields a value. It is classified as a distinct subclass of programming languages designed for communicating instructions to a machine. This type of language serves as the manifestation of the expression-oriented programming paradigm.

## Key Facts
- **Definition:** Characterized by the trait that nearly every construction is an expression and thus produces a value.
- **Classification:** It is a subclass of "programming language" (general languages for communicating instructions to a machine).
- **Paradigm:** It functions as the manifestation of "expression-oriented programming."
- **Related Entity:** WebAssembly is listed as a related entity; WebAssembly is a portable virtual machine and bytecode format for compiled code on the Web, inception date 2015.
- **Aliases:** Also known as "面向表达式语言" (Chinese).
- **Identifier:** Freebase ID is /m/03s1m9.
- **Wikipedia Presence:** Has Wikipedia pages in German (de), English (en), and Serbian (sr), with a total sitelink count of 3.

## FAQs
### Q: What is the defining characteristic of an expression-oriented programming language?
A: The defining characteristic is that nearly every construction in the language is an expression. Consequently, almost every part of the code yields a value.

### Q: How does this language type relate to general programming languages?
A: It is a specific subclass of programming language. While all programming languages communicate instructions to a machine, expression-oriented languages specifically adhere to the expression-oriented programming paradigm.

### Q: Is there a standard example of a related technology?
A: WebAssembly is identified as a related entity. It is a portable, efficient virtual machine and bytecode format used for compiled code on the Web.

## Why It Matters
Expression-oriented programming languages matter because they represent a structural approach to coding where the distinction between a statement (an instruction to do something) and an expression (a calculation of a value) is minimized or eliminated. By ensuring that nearly every construction yields a value, these languages allow for more concise code and facilitate functional programming styles where values are chained or passed continuously.

This design philosophy contrasts with statement-oriented languages, where procedures often consist of sequential commands that do not return values. The existence of this classification highlights the diversity in how programming languages manage logic and data flow, directly influencing how developers write algorithms and structure software. Its relationship to technologies like WebAssembly suggests its relevance in modern, efficient computing environments where streamlined bytecode and virtual machines are essential.

## Notable For
- **Value Yielding:** Being distinguished by the feature that nearly every construction returns a value.
- **Paradigm Implementation:** Serving as the concrete manifestation of the expression-oriented programming paradigm.
- **WebAssembly Connection:** Holding a taxonomic relationship to WebAssembly, a major technology for web development.
- **Multilingual Documentation:** Having documented presence across multiple language Wikipedias (English, German, Serbian).

## Body
### Definition and Core Concept
An expression-oriented programming language is defined strictly by its syntax and semantics, where the unit of code is predominantly the expression. Unlike standard languages that may separate commands (statements) from calculations (expressions), this language type ensures that instructions also serve as value-yielding expressions.

### Classification and Hierarchy
According to structured knowledge sources:
- **Subclass of:** Programming Language (defined as a language for communicating instructions to a machine).
- **Instance of:** Expression-oriented programming (the paradigm itself).

The entity holds a specific identifier in the Freebase database (`/m/03s1m9`) and is recognized within the Wikidata framework as having a sitelink count of 3.

### Related Technologies
The knowledge base explicitly links **WebAssembly** to this category or concept. WebAssembly is described as a "portable, efficient virtual machine and bytecode format for compiled code on the Web." Key data regarding WebAssembly includes:
- **Inception:** 2015
- **Sitelink Count:** 29 (indicating higher general visibility than the language concept itself).

### Linguistic and Cultural Data
The concept of expression-oriented programming languages has specific aliases and localization data:
- **Chinese Alias:** 面向表达式语言
- **Wikipedia Languages:** Available in German (`de`), English (`en`), and Serbian (`sr`).