Sometimes you want the type checker to help you avoid making assumptions.

George

Future

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When dealing with external data in programming, you cannot be certain of its type without validation. Assigning an 'unknown' type to unverified data ensures type safety, compelling developers to validate data before use. This helps prevent runtime errors caused by unsafe assumptions about input data. The post highlights the importance of cautious type handling and demonstrates how to use 'unknown' types to improve code reliability.

Why Unknown Types Are Useful

<p>Great article, very simple and to the point. This is what I always ask myself when building APIs</p>


<p>I have a doubt, if you type getInput as string, typescript will make sure that data will always be an string. Wouldn’t that be adding extra code the way you’ve explained it? I’m just curious thanks</p>
