What is the difference between 'unknown' and 'any' in TypeScript?
An example of an AI chatbot conversation about the differences between 'unknown' and 'any' in TypeScript.
Can you explain the difference between 'unknown' and 'any' in TypeScript?
Sure! In TypeScript, 'any' allows any type of value, while 'unknown' requires type checking before use.
So, is 'unknown' safer to use than 'any'?
Yes, 'unknown' is safer because it forces you to perform type checks before using the value, reducing runtime errors.
Can you give me an example of when to use 'unknown'?
Certainly! Use 'unknown' when you receive data from an external source and want to ensure type safety before processing it.
What about performance? Does using 'unknown' affect it?
Using 'unknown' doesn't significantly impact performance, but it may require additional type checks, which can add some overhead.
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