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Life & fun · January 19, 2017

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Generate TypeScript Types from JSON Samples

Generate TypeScript Types from JSON Samples launched on January 19, 2017 with 5 votes and more than 50% of that year's launches. The site was still online in September 2026, 9 years on.

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What it does

MakeTypes generates TypeScript classes that parse and typecheck JSON objects at runtime, and let you statically type check code that interacts with JSON objects. All it requires is a set of JSON samples. Want to run MakeTypes as part of a build process? npm i -g maketypes installs the command line tool maketypes . Use these if you want to statically type check interactions with JSON objects without runtime type checks. Use these if you want to statically type check interactions with JSON objects with runtime type checks. Proxy classes generated with MakeTypes will parse your JSON and check that it matches the expected type at runtime . Proxy objects generated with MakeTypes are expressed as…from jvilk.com

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