[英]How to type a function return type with dynamic key in typescript?
[英]Typescript how to return key type
我找不到有关如何正确返回该类型的某个属性的类型、在另一个字段中传递密钥的信息。
有人可以告诉我或指出我做错了什么吗? :(
type TUser = {
age: number,
initials: {
name: string
}
}
type TRendererFunctionArgs<TValues> = {
value: TValues[keyof TValues],
}
type TRenderer<TValues> = {
name: keyof TValues,
renderer: ({ value }: TRendererFunctionArgs<TValues>) => string,
}
const renderer : TRenderer<TUser> = {
name: 'initials',
renderer: ({ value }) => value.name, // <--- There is problem because. value : value: number | {name: string}
}
type TUser = {
age: number,
initials: {
name: string
}
}
type TRenderer<TValues> = { [K in keyof TValues]-?: {
name: K;
renderer: ({ value }: { value: TValues[K] }) => string;
} }[keyof TValues];
const renderer : TRenderer<TUser> = {
name: 'initials',
renderer: ({ value }) => value.name
}
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