Should I write out the typescript .d.ts file by hand or generate it automatically

When using Typescript, you can utilize the "declaration": true" option in tsconfig to automatically generate d.ts files from your existing Typescript code. Although they may not be as concise as manually written ones, I am curious if there is any downside to depending on these since they appear to be fairly accurate.

Edit: We are currently developing a library using Typescript.

Answer №1

When developing a library, it is generally recommended to allow TypeScript to generate declaration files for you. While manually creating *.d.ts files can be beneficial when working with a JavaScript library and specifying its behavior, there are situations where exceptions may apply. For instance, you may choose to tidy up the autogenerated files by eliminating unnecessary comments. Some individuals might suggest addressing this issue by labeling them as @internal instead.

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