feat: narr 添加一些聚合（高阶）方法。

narr/collection.go

@@ -425,3 +425,54 @@ func Map[T any, V any](list []T, mapFn func(obj T) (val V, find bool)) []V {
 func Column[T any, V any](list []T, mapFn func(obj T) (val V, find bool)) []V {
 	return Map(list, mapFn)
 }
+
+// Every check all true in given slice
+func Every[T any](list []T, fn func(T) bool) bool {
+	if len(list) == 0 {
+		return false
+	}
+	for _, t := range list {
+		if !fn(t) {
+			return false
+		}
+	}
+	return true
+}
+
+// Some check some true in given slice
+func Some[T any](list []T, fn func(T) bool) bool {
+	if len(list) == 0 {
+		return false
+	}
+	for _, t := range list {
+		if fn(t) {
+			return true
+		}
+	}
+	return false
+}
+
+// Filter returns a new slice by given filter func
+func Filter[T any](list []T, filterFn func(i int, currentValue T) bool) []T {
+	ret := make([]T, 0)
+	if list == nil {
+		return ret
+	}
+
+	for i, v := range list {
+		if filterFn(i, v) {
+			ret = append(ret, v)
+		}
+	}
+
+	return ret
+}
+
+// Reduce all list item by given func
+func Reduce[T any, M any](list []T, reduceFn func(total M, currentVal T, idx int) M, initialValue M) M {
+	ret := initialValue
+	for i, item := range list {
+		ret = reduceFn(ret, item, i)
+	}
+	return ret
+}