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TypeScript: Implicit cast from any to everything?


The any type is a special type. Where possible, you should avoid using the any type unless you want to take advantage of dynamic types.

The any type is a short way of saying...

Treat this variable as if it were compatible with any other type.

So you can assign it to a string, a number, an array, an object, a interface with any structure... anything at all.

So don't think of it as being an any type, think of it as being "a string if I assign it to a string".

You can avoid accidental use of the any type by passing the --noImplicitAny compiler flag (or setting your project settings to use this flag).


Categories : Typescript

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