CODEWITHSUNDEEP
typescripttypescript-typings
Oscar
Oscar

Reputation: 15

What's the difference between (Record<string, unkown>) and object type?

What's the difference between type Record<string, unkown> and type object?

Implement a generic DeepReadonly<T> which make every parameter of an object - and its sub-objects recursively - readonly.

I wrote a type：

type DeepReadonly<T> = T extends object ? {readonly:[K in keyof T]:DeepReadonly<T[K]>}:T

but it's not correctly. replaced this object width Record<string,unkown>, the 'DeepReadonly' worked well. What's the difference? Is that object could be empty?But the Record<string,unkown> must be {[key:string]:unkown}?

Upvotes: 0

Views: 588

Answers (1)

Unreal
Unreal

Reputation: 133

type object refers to Reference Type, it can be an array, function, or object literal. Record<> only refers to object literal.

Upvotes: 1

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