Function pick

pick<T>(
    obj: Record<string, T> | Promise<Record<string, T>>,
    predicate: (
        value: T,
        key: string,
        token: CancellableToken,
    ) => Promise<boolean>,
    options?: PickOptions<T>,
): CancellableHandle<Record<string, T>>
Creates an object composed of properties for which the predicate returns truthy. Similar to filter but returns an object instead of an array.
Type Parameters
- T
  The type of the object values.
Parameters
- obj: Record<string, T> | Promise<Record<string, T>>
  The object to iterate over.
- predicate: (value: T, key: string, token: CancellableToken) => Promise<boolean>
  An async function that tests each property.
- Optionaloptions: PickOptions<T>
  Configuration options, including concurrency limit.
Returns CancellableHandle<Record<string, T>>
A cancellable handle that resolves to an object with picked properties.
Example
```
const data = { a: 1, b: 2, c: 3, d: 4 };

const handle = pick(
  data,
  async (value, key, token) => {
    await token.sleep(10);
    return value % 2 === 0;
  },
);

const result = await handle; // { b: 2, d: 4 }
```
- Defined in packages/core/src/collections/pick.ts:39