Does yup or zod have a method to determine is schema is yup-schema or zod-schema?

Question

We have a project where we are using yup and now zod for validation, in parallel. We need a way to reliably distinguish one schema from another. Are there any methods in either of these to detect this? Something like: yup.isYupSchema() or z.isZodSchema()?

Answer 1

Let's say this is a schema that you have:

    const zodSchema = z.object({
      one: z.number(),
      two: z.object({
        three: z.number(),
        four: z.number(),
      }),
    });

Then you can check whether this is indeed a zod schema by running:

import { ZodObject } from 'zod';

zodSchema instanceof ZodObject