lo/docs/data/core-finderr.md

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

name	slug	sourceRef	category	subCategory	signatures	playUrl	variantHelpers	similarHelpers	position
FindErr	finderr	find.go#L83	core	find	func FindErr[T any](collection []T, predicate func(item T) (bool, error)) (T, error)	https://go.dev/play/p/XK-qtpQWXJ9		core#find#find core#find#findorelse core#find#findkey core#find#findindexof core#slice#filter	41

Searches for an element in a slice based on a predicate that can return an error. Returns the element and nil error if found. Returns zero value and nil error if not found. If the predicate returns an error, iteration stops immediately and returns zero value and the error.

result, err := lo.FindErr([]string{"a", "b", "c", "d"}, func(i string) (bool, error) {
    return i == "b", nil
})
// "b", nil

result, err = lo.FindErr([]string{"foobar"}, func(i string) (bool, error) {
    return i == "b", nil
})
// "", nil

result, err = lo.FindErr([]string{"a", "b", "c"}, func(i string) (bool, error) {
    if i == "b" {
        return false, fmt.Errorf("b is not allowed")
    }
    return i == "b", nil
})
// "", error("b is not allowed")