interface A{
x: string;
y: string;
z: string;
// maybe later something more
}
interface B{
[K in keyof A]: Boolean;
}
Why isn't it working? I want to create something like that, but dynamically:
interface B{
x: Boolean;
y: Boolean;
z: Boolean;
// maybe later something more
}
Don't use Boolean use boolean.
Also mapped types only work with type not interface, there is little difference between the two, so this should work
type Bar = {
[key in keyof A]: boolean
}
Also, this mapped type could be written using the redefined mapped type Record:
type Bar = Record<keyof A, boolean>
Try following:
interface A{
x: string;
y: string;
z: string;
// maybe later something more
}
type Bar = {
[key in keyof A]: boolean
}
interface B extends Bar { }