I have an email field that only gets shown if a checkbox is selected (boolean value is true). When the form get submitted, I only what this field to be required if the checkbox is checked (boolean is true). This is what I've tried so far: const validationSchema = yup.object().shape({ email: yup .string() .email() .label('Email') .when ...

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.

Nov 13, 2024 · Yup 是一个功能强大且灵活的 JavaScript 数据校验库，适用于各种场景。 通过声明式的方式定义模式和校验规则，开发者可以轻松确保数据的正确性和完整性。

Feb 28, 2019 · How to make validation work conditionally, for example if isPerson is true, then person in validationSchema is required to be validated? Updated ans: 2023. you can use Yup conditions. isCompany: Yup.boolean(), companyName: Yup.string().when('isCompany', { is: true, then: Yup.string().required('Field is required') }),

Jul 24, 2018 · How to access value2's value in the when condition? I'm not sure it's the right way to do it, but I'm using test. Like this: const otherFieldValue = this.parent.yourField2. if (!otherFieldValue) { return true; return value > otherFieldValue; Try this if you want to compare more than condition between two fields. .moreThan( Yup.ref('value'),

Feb 29, 2024 · Sometimes when you are validating large and nested objects with yup and you wanna do a validation based (conditional validation) on a property of a parent of your current …

Apr 1, 2022 · How to enable or disable validation on Formik form fields based on certain conditions in Yup.

Sep 9, 2023 · In this blog post, we will explore different approaches to achieve conditional validation using Yup. The when method in Yup allows us to define conditional validation based on the value of another field. We can specify the field to watch and the conditions to check. If the conditions are met, we can apply additional validation rules.

Jul 15, 2024 · 简单来说 jest 对 schema 是有引用的需求，所以 schema 必须在 jest 存在之前存在。 而 yup/zod 本身又是不可变的，因此想要修改其中的值，即被 mock 的 oneOf(Object.keys(enumTypes.getTestEnum()))，就需要在 jest 的 ut 运行前重新获得一个新的，属性已经被正常更新的 schema

Dec 15, 2022 · Yup 是一个用于值解析和验证的 JavaScript 架构构建器。 定义模式、转换值以匹配、验证现有值的形状，或两者兼而有之。 Yup 模式具有极强的表现力，允许对复杂的、相互依赖的验证或值转换进行建模。 schema 是对数据的一种描述。 例： yup.string() 描述数据是字符串类型。 我们可以 required 、 min， max 等 修饰方法 对其进行修饰，也可以使用 test 方法来订制更复杂的描述。 除了 string， yup 还内置了 number 、 boolean 、 data 、 array 、 object 模式， …