sum

sum() function

Adds all the elements of a Iterable/AsyncIterable.

Signature:

declare function sum<A extends Iterable<number> | AsyncIterable<number>>(iterable: A): A extends Iterable<number> ? number : A extends AsyncIterable<number> ? Promise<number> : never;

Example

sum([]); // 0
sum([1, 2, 3, 4]); // 10
await sum(toAsync([1, 2, 3, 4])); // 10

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