AtScript was a proposed

JavaScript JavaScript (), often abbreviated as JS, is a programming language and core technology of the World Wide Web, alongside HTML and CSS. Ninety-nine percent of websites use JavaScript on the client side for webpage behavior. Web browsers have ...

-based

scripting language In computing, a script is a relatively short and simple set of instructions that typically automation, automate an otherwise manual process. The act of writing a script is called scripting. A scripting language or script language is a programming ...

extending Microsoft's

TypeScript TypeScript (abbreviated as TS) is a high-level programming language that adds static typing with optional type annotations to JavaScript. It is designed for developing large applications and transpiles to JavaScript. It is developed by Micr ...

and transcompiling to JavaScript. It was introduced in October 2014 at the ng-Europe conference by the developers of

Google Google LLC (, ) is an American multinational corporation and technology company focusing on online advertising, search engine technology, cloud computing, computer software, quantum computing, e-commerce, consumer electronics, and artificial ...

AngularJS AngularJS (also known as Angular 1) is a discontinued free and open-source JavaScript-based web framework for developing single-page applications. It was maintained mainly by Google and a community of individuals and corporations. It aimed to si ...

web development framework as the language that the upcoming Angular 2.0 would be built with. AtScript was originally intended to run on top of TypeScript, while including some features from Dart. In October 2014, Google announced that Angular 2.0 would be written in AtScript. In March 2015, Microsoft announced that many of AtScript's features would be implemented in the TypeScript 1.5 release, and that Angular 2.0 would be built on pure TypeScript. The name “AtScript” comes from the @ “at” symbol used for annotations in many languages (e.g.

Java annotation In the Java computer programming language, an annotation is a form of syntactic metadata that can be added to Java source code. Class (computer programming), Classes, Method (computer programming), methods, Variable (computer science), variables ...

s and Python decorators).

References

JavaScript programming language family Scripting languages {{prog-lang-stub