Yup is a schema builder for runtime value parsing and validation. Define a schema, transform a value to match, assert the shape of an existing value, or both. Yup schema are extremely expressive and allow modeling complex, interdependent validations, or value transformation.

To make Yup.when work properly, you would have to add showEmail to initialValues and to your Yup schema shape. In general, when using validationSchema, it is best practices to ensure that all of your form's fields have initial values so that Yup can see them immediately. The result would look like: initialValues={{ email: '', showEmail: false }}

Yup is a schema builder for runtime value parsing and validation. Define a schema, transform a value to match, assert the shape of an existing value, or both. Yup schema are extremely expressive and allow modeling complex, interdependent validations, or value transformation.

Cách đơn giản nhất để sử dụng Yup là: Định nghĩa một Object schema và validation nó; Tạo đối trượng validate sử dụng Yup tương ứng với Object schema và validation; Sử dụng function 'validate' của Yup (nếu object hợp lệ thì passed)

yup 是一个 javascript lib，用于数据 validation 和 parse。 下面是一个简单的例子： 上面的代码定义一个字符串 schema，要求长度范围 2 - 20，且不能为 null。 定义好schema之后，可以调用 validate 方法以验证输入，得到验证结果，如果验证失败，会返回一个 validationError。 或者调用 cast 方法将输入转化为符合 schema 的结果。 如果输入类型与schema预期的类型不一致，会尝试转型，比如，数字 1 会转化为字符串 "1"，date 对象会调用 toString 方法转化为字符串。 这就 …

2019年2月28日 · Objects are not valid as a React child (found: object with keys {label, value}). If you meant to render a collection of children, use an array instead. I want to know how to assign objects in validation schema for yup concept. initialValues={{ department:"", }} onSubmit={this.submitForm} validationSchema={Yup.object().shape({

2020年12月6日 · I used the .min(num, message) method of Yup.array() const validationSchema = Yup.object().shape({ stringArray: Yup.array().min(1, messageHere); }); you can also check if the values of your array contains strings using the array().of() const validationSchema = Yup.object().shape({ stringArray: Yup.array().of(Yup.string()); });

2024年12月19日 · Yup là một thư viện giúp bạn định nghĩa schema để xác thực dữ liệu một cách đơn giản, dễ đọc, và mạnh mẽ. Nó tích hợp tốt với TypeScript, React Hook Form, Formik,... Với Yup, việc tách phần logic validation ra khỏi component trở …

2023年9月25日 · Yup is a library for validating user input in JavaScript that follows a structured and declarative approach. It provides a user-friendly syntax for defining validation schemas, and a...

Yup is a schema builder for runtime value parsing and validation. Define a schema, transform a value to match, assert the shape of an existing value, or both. Yup schema are extremely expressive and allow modeling complex, interdependent validations, or value transformation.