In this post, we will see how to resolve Typescript weird type inference {} when checking null or undefined Question: After we upgraded from typescript 4.9.3 to 5.0.2 we faced following error during asserting types. Does anybody know why function ...
In this post, we will see how to resolve Type ‘string | number’ is not assignable to type ‘never’ when dynamically setting an object property with different types Question: I have a function to update a property on an object ...
In this post, we will see how to resolve Type ‘string’ is not assignable to type ‘Message’ in NEXT.JS (typescript) Question: I am trying to create a clone of messenger using Next.Js as practice and while using typedefinitions and using ...
In this post, we will see how to resolve Change type of an object’s property based on another property’s value in class variable Question: TL;DR TypeScript type inference fails in class when using union types I’ve ran into an issue ...
In this post, we will see how to resolve Get typescript function return type from paramter type Question: Yes I’ve seen a lot of question like Typescript return type depending on parameter But my problem is a little different: the ...
In this post, we will see how to resolve typescript, create type combine option value Question: In typescript. I have a type A: And a B: And now I want a type: Which combine all A option value and B ...
In this post, we will see how to resolve Create an object type that uses an object’s values as the key in the typescript Question: I am creating a function called formatAddress which accepts an address object and property map ...
In this post, we will see how to resolve How to correctly type React useState hook with enum in TypeScript Question: How to type my useState hook correctly? I have this enum type: And the useState hook: const [isValid, setIsValid] ...
In this post, we will see how to resolve Can not use querymen with typescript? Question: I am using "querymen" library to parse the query string to mongodb | mongoose query and I am writing my code in TypeScript but ...
In this post, we will see how to resolve Typescript can not infer constructor return type Question: I expected a is Uint8Array, but got unknown Playground Link: Provided How do define the type make return type is Uint8Array ? Best ...