React 这个数组中 export const rules: Rules = { FirstName: [ { type: "string", required: true, message: "First Name is required", validator(rule, value, callback, source, options) { const firstNameValue = Object.keys(source).find(k => k.indexOf("FirstName") >= 0); if (firstNameValue) { source["FirstName"] = source[firstNameValue]; } callback(); } }, { pattern: /^[a-z\s]{1,25}$/i, message: "Invalid First Name" } ], LastName: [ { type: "string", required: true, message: "Last Name is required", validator(rule, value, callback, source, options) { const firstNameValue = Object.keys(source).find(k => k.indexOf("LastName") >= 0); if (firstNameValue) { source["LastName"] = source[firstNameValue]; } callback(); } }, { pattern: /^[a-z\s]{1,25}$/i, message: "Invalid Last Name" } ], MiddleName: [{ pattern: /^[a-z\s]{1,25}$/i, message: "Invalid Middle Name" }], BirthDate: [ { type: "string", validator(rule, value, callback, source, options) { if (!value) { return callback("Birth Date is required"); } const date = parse(value, "mm/dd/yyyy", new Date()); const age = differenceInYears(new Date(), date); if (age < 22) return callback("Patients must be over 22 years old"); callback(); } } ], Gender: { type: "enum", required: true, message: "Gender is required", enum: ["male", "female", ""] }, MRN: [{ required: true, pattern: /^[a-z0-9-]{1,50}$/i, message: "MRN is required" }] }; 如何使用hooks
时间: 2023-07-19 09:38:41 浏览: 163
这段代码是一个表单验证的规则定义,其中包含了每个字段的验证规则。它并没有直接使用 React hooks,而是使用了一个第三方库 antd 中的表单验证组件 Form。
如果你想在 React 中使用表单验证,可以先安装 antd:
```
npm install antd
```
然后在你的组件中引入 Form 和相关组件:
```jsx
import { Form, Input, Button } from 'antd';
import { rules } from './rules'; // 这里引入了上面的规则定义
```
接着,你可以在你的组件中使用 Form 和相关组件来渲染表单:
```jsx
const MyForm = () => {
const [form] = Form.useForm();
const handleSubmit = async (values) => {
// 处理表单提交
};
return (
<Form form={form} onFinish={handleSubmit}>
<Form.Item name="FirstName" label="First Name" rules={rules.FirstName}>
<Input />
</Form.Item>
<Form.Item name="LastName" label="Last Name" rules={rules.LastName}>
<Input />
</Form.Item>
<Form.Item name="MiddleName" label="Middle Name" rules={rules.MiddleName}>
<Input />
</Form.Item>
<Form.Item name="BirthDate" label="Birth Date" rules={rules.BirthDate}>
<Input />
</Form.Item>
<Form.Item name="Gender" label="Gender" rules={rules.Gender}>
<Input />
</Form.Item>
<Form.Item name="MRN" label="MRN" rules={rules.MRN}>
<Input />
</Form.Item>
<Button type="primary" htmlType="submit">Submit</Button>
</Form>
);
};
```
在上面的代码中,我们使用了 Form.useForm() hook 来创建一个表单实例,并且把这个实例传递给了 Form 组件的 form 属性。然后,我们使用 Form.Item 和 Input 组件来渲染每个表单项,并且把对应的规则传递给了 rules 属性。最后,在表单中添加了一个提交按钮,并且在提交时调用了 handleSubmit 函数来处理表单数据。
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