graphql
Version:
A Query Language and Runtime which can target any service.
24 lines (23 loc) • 611 B
TypeScript
import type { ObjMap } from './ObjMap';
/**
* Creates a keyed JS object from an array, given a function to produce the keys
* and a function to produce the values from each item in the array.
* ```ts
* const phoneBook = [
* { name: 'Jon', num: '555-1234' },
* { name: 'Jenny', num: '867-5309' }
* ]
*
* // { Jon: '555-1234', Jenny: '867-5309' }
* const phonesByName = keyValMap(
* phoneBook,
* entry => entry.name,
* entry => entry.num
* )
* ```
*/
export declare function keyValMap<T, V>(
list: ReadonlyArray<T>,
keyFn: (item: T) => string,
valFn: (item: T) => V,
): ObjMap<V>;