Function filter

Only emits elements from an Iterable that match the given Predicate.

Example

Filter even numbers

const filterEven = filter(isEven);
const iterable = [1,2,3,4];
const filteredIterable = filterEven(iterable);
console.log(filteredIterable); // [2,4]

See

distinct, findFirst and first for similar operations.

Returns

an Iterable that only emits values for which the Predicate returns true