pick
Returns a new object or array containing the specified keys or indices extracted from the input object or array. The return value is a plain object or array and does not modify the original input.
Added in v0.0.1
Usage
typescript
import { pick } from 'parsnip-kit'
const obj = { a: 1, b: 2, c: 3 }
const keys0 = ['a', 'c'] as const
const result0 = pick(obj, keys0)
// Pick<{ a: number; b: number; c: number; }, "a" | "c">
// { a: 1, c: 3 }
const arr = [1, 2, 3, 4]
const keys1 = ['1', '[3]'] as const
const result1 = pick(obj, keys1)
// Pick<number[], 1 | 3>
// [2, 4]API
Type Parameter
| Arg | Type | Description |
|---|---|---|
T | extends object | Type of the object to be processed |
R | extends readonly string[] | Array type of field paths |
Arguments
| Arg | Type | Optional | Default | Description |
|---|---|---|---|---|
obj | T | false | undefined | Type of the object to be processed |
keys | R | false | undefined | The keys or array indices to extract |
Returns
| Type |
|---|
Pick<T, KeyOrIndex<ExtractUnion<R>> & keyof T> |