Added logical or

validators/logic.ts

@@ -0,0 +1,18 @@
+import { Validator, Args, Validatable, validate } from "../mod.ts";
+
+export function or(...funcs: Validatable[]): Validator {
+  return {
+    type: "or",
+    check: async (value: any) => {
+      const errors = await Promise.all(funcs.map((x) => validate(value, x)));
+      if (errors.every((x) => x.length > 0)) {
+        return {
+          errors,
+        };
+      }
+    },
+    message: (value: any, args?: Args) => {
+      return "At least one of the rules has to be successful.";
+    },
+  };
+}