Self

Self is a programming language created in 1987 by David Ungar.

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Self is an object-oriented programming language based on the concept of prototypes. Self began as a dialect of Smalltalk, being dynamically typed and using just-in-time compilation (JIT) as well as the prototype-based approach to objects: it was first used as an experimental test system for language design in the 1980s and 1990s. In 2006, Self was still being developed as part of the Klein project, which was a Self virtual machine written fully in Self. Read more on Wikipedia...

Self website
Self Wikipedia page
Self docs
There are at least 36 Self repos on GitHub
file extensions for Self include self
The Google BigQuery Public Dataset GitHub snapshot shows 24 users using Self in 26 repos on GitHub
Explore Self snippets on Rosetta Code
Self on HOPL
selflanguage.org was registered in 2009
See also: (16 related languages)Smalltalk, NewtonScript, JavaScript, Io, Agora, Squeak, Lisaac, Lua, Factor, REBOL, Java, Solaris, Linux, C, CECIL, Ioke
Read more about Self on the web: 1.
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Example from hello-world:

'Hello World' printLine

Example from the Hello World Collection:

(|  "Hello World in Self"

  hello = (| | 'Hello World!' print)
|)

Example from Wikipedia:

_AddSlots: (| porsche911 <- sportsCar copy |).
porsche911 name:'Bobs Porsche'.

Feature	Supported	Token	Example
Strings	✓	'	'Hello world'
Print() Debugging	✓	printLine
Message Passing	✓
Semantic Indentation	X

title	authors	year	citations	influentialCitations
Self	D. Ungar and Randall B. Smith	2007	218	8
Programming as an Experience: The Inspiration for Self	Randall B. Smith and D. Ungar	1995	112	5

Language features

Books about Self from ISBNdb

Publications about Self from Semantic Scholar