python (12.9k questions)

javascript (9.2k questions)

reactjs (4.7k questions)

java (4.2k questions)

java (4.2k questions)

c# (3.5k questions)

c# (3.5k questions)

html (3.3k questions)

Questions - keyof

How to change the interface key: value: string to [{ [key: string]: string }

I have interface IUser { name: string; surname: string; cityLocation: string; } the value will be const user: IUser = { "name": "John"; "surname": "Smith&...
test-img

Jackson

string

typescript

interface

signature

keyof

Votes: 0

Answers: 1

Latest Answer

As the error says, Index signature is missing in type 'IUser' so add it: interface IUser { name: string; surname: string; cityLocation: string; [key: string]: string; } Playground link
test-img

Jamiec

Get string literal types from Array of objects

So from: export interface Category{ val: string; icon: string } const categoryArray: Category[] = [ { val: 'business', icon: 'store' }, { val: 'media', icon: 'video' }, {...
test-img

TrySpace

typescript

typeof

union-types

keyof

Votes: 0

Answers: 1

Latest Answer

You can do it if: The values in the array don't change at runtime (since type information is a compile-time-only thing with TypeScript); and You tell TypeScript that they values won't change by usin...
test-img

T.J. Crowder

Posts

Questions

Blogs

Jobs