Function takeWhile

Takes values while the predicate test succeeds.

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

const i = pipe(
    [1, 2, 3, 4, 5, 6, 7, 8, 9],
    takeWhile(a => a < 5) // take while value < 5
);

console.log(...i); //=> 1, 2, 3, 4
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

• skip
• skipUntil
• skipWhile
• take
• takeLast
• takeUntil