AtScript
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AtScript is a language created to help developers read JavaScript. Similar to Microsoft's TypeScript, Google has created AtScript to improve JavaScript by providing a much easier way to manage it. AtScript is designed to work alongside TypeScript. AtScripted is influenced by TypeScript but Typescript lacks runtime introspection and metadata annotations. [1] Enhancements include: Type annotations, Field annotations, Metadata annotations and Type Introspection with annotation support. SDTimes has designated AtScript as Google's new superset JavaScript runtime. [2]