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/**
Create a union of the given object's values, and optionally specify which keys to get the values from.
Please upvote [this issue](https://github.com/microsoft/TypeScript/issues/31438) if you want to have this type as a built-in in TypeScript.
@example
```
// data.json
{
'foo': 1,
'bar': 2,
'biz': 3
}
// main.ts
import {ValueOf} from 'type-fest';
import data = require('./data.json');
export function getData(name: string): ValueOf<typeof data> {
return data[name];
}
export function onlyBar(name: string): ValueOf<typeof data, 'bar'> {
return data[name];
}
// file.ts
import {getData, onlyBar} from './main';
getData('foo');
//=> 1
onlyBar('foo');
//=> TypeError ...
onlyBar('bar');
//=> 2
```
*/
export type ValueOf<ObjectType, ValueType extends keyof ObjectType = keyof ObjectType> = ObjectType[ValueType];
Version data entries
65 entries across 65 versions & 6 rubygems