Function some

Standard Array.some logic for the iterable, extended with iteration state + async.

It emits a boolean, indicating whether at least one element passes the predicate test.

import {pipe, some} from 'iter-ops';

const i = pipe(
    [1, 2, 3],
    some(a => a % 2 === 0) // checks if even numbers are present
);

console.log(...i); //=> true

console.log(i.first); //=> true
Copy

Note that the predicate can only return a Promise inside an asynchronous pipeline, or else the Promise will be treated as a truthy value.

See

• Array.some
• every