TypeScript 3.8, a new version of Microsoft’s typed superset of JavaScript, is now available in a beta release. The latest TypeScript upgrade emphasizes type-only imports and exports and ECMAScript standards compliance.

The release adds a new syntax for type-only imports and exports, with the intent of giving users more fine-grained control over import and elision. The import type syntax only imports declarations to be used for type annotations and declarations and always gets fully erased. The export type syntax only provides an export to be used for type contexts and is erased from TypeScript output.

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