TypeScript

Extension (a “superset”) of the JavaScript language. It differentiates itself from competitors like CoffeeScript and Dart in that plain JavaScript code can be intermixed with TypeScript. Primarily provides optional static typing, classes and interfaces.

First released2012
Developed byAnders Hejlsberg
Latest stable version4.6.3
Open-sourceYes
Used byAccenture, Avanade, So.cl

Interesting facts

TypeScript may be used to develop JavaScript applications for both client-side or server-side (Node.js) execution.

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