lo/docs/data/it-productby.md

name, slug, sourceRef, category, subCategory, signatures, playUrl, variantHelpers, similarHelpers, position

name	slug	sourceRef	category	subCategory	signatures	playUrl	variantHelpers	similarHelpers	position
ProductBy	productby	it/math.go#L90	it	math	func ProductBy[T any, R constraints.Float | constraints.Integer | constraints.Complex](collection iter.Seq[T], transform func(item T) R) R		it#math#product	core#slice#productby core#slice#product	67

Returns the product of values in the collection using the given transform function.

result := it.ProductBy(it.Range(1, 5), func(item int) int {
    return item * 2
})
// 384 (2 * 4 * 6 * 8)