21 lines
635 B
TypeScript
21 lines
635 B
TypeScript
// TODO: Extend this to symbol when TS allows symbols in index signatures:
|
|
// https://github.com/Microsoft/TypeScript/issues/1863
|
|
/**
|
|
Invert the key/value of an object. Example: `{foo: 'bar'}` → `{bar: 'foo'}`.
|
|
|
|
@example
|
|
```
|
|
import invertKeyValue = require('invert-kv');
|
|
|
|
invertKeyValue({foo: 'bar', '🦄': '🌈'});
|
|
//=> {bar: 'foo', '🌈': '🦄'}
|
|
```
|
|
*/
|
|
declare function invertKeyValue<
|
|
KeyType extends string | number,
|
|
ValueType extends string | number | symbol
|
|
>(
|
|
object: {[key in KeyType]: ValueType}
|
|
): {[key in ValueType]: KeyType extends number ? Exclude<KeyType, number> | string : KeyType};
|
|
|
|
export = invertKeyValue;
|