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My project uses package like @types/express and @types/body-parser. Recently these .d.ts files were updated to use generic defaults, but that means these declaration files now require TypeScript 2.3 or above.

However, my project still uses an older version of TypeScript - TypeScript 2.2. How do I use npm to make sure my project can still understand these definition files without upgrading?

Daniel Rosenwasser
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1 Answers1

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The @types publisher tool actually tags releases based on compatibility.

To be able to install declaration files that are compatible with TypeScript 2.2, you can write

npm install @types/body-parser@ts2.2

It's not always perfect, but it'll usually get the job done.

Daniel Rosenwasser
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