npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@redchili/aform

v1.1.3

Published

基于微信小程序类 React 框架 [Remax](https://remaxjs.org/) 的轻量级表单库

Downloads

6

Readme

AForm

基于微信小程序类 React 框架 Remax 的轻量级表单库

背景

表单问题,不管是在 jQuery 时代,还是 React,Vue 时代,都一直存在,微信小程序更是如此。目前传统的表单开发方式:

  1. 手动管理表单状态
  2. 手动收集表单数据
  3. 手动管理表单校验状态

带来的问题:

  1. 表单数量大而复杂的时候,每个表单域都要手动绑定 value/onChange ,造成代码冗余
  2. 表单数据校验缺乏简单而统一的方式,需要手动逐个处理,增加工作量

特点

  • 自动绑定表单域,用于收集输入数据,无需手动声明 'onChange'、'onBlur' 等方法
  • 简化校验数据的方式,内置常用的校验规则,比如:必填/可选,最大值,正则判断手机号等
  • 样式无关,AForm 只负责处理表单的收集数据,校验数据,提交数据的逻辑,表单的样式由开发者自定义
  • 使用 Typescript,具有完整准确的类型提示

安装

yarn add @redchili/aform

示例【Remax】

快速入门

import React, { useState, useEffect } from "react";
import { View, Text, Image, Input, Label } from "remax/wechat";
import { Form, Field, Submit } from "@redchili/aform";
import styles from "./index.css";

function InputBase(props) {
  return (
    <View>
      <Label>test</Label>
      <Input value={props.value} onInput={props.onInput}></Input>
    </View>
  );
}

export default () => {
  return (
    <View className={styles.app}>
      <Form onSubmit={(data) => console.log(data)}>
        <Field
          name="test"
          rule={[{ required: true, message: "请输入测试数据" }]}
          component={InputBase}
        ></Field>
        <Submit>test</Submit>
      </Form>
    </View>
  );
};

更多场景示例

循序渐进的教程

绑定表单域

从下面简单场景中理解如何绑定表单域 注册页面

import { View, Text, Image, Input, Label } from "remax/wechat";
import {
  ReForm as Form,
  ReField as Field,
  ReSubmit as Submit,
} from "@redchili/aform";

<View className={styles.formBox}>
  <Form onSubmit={(data) => console.log(data)}>
    <Field name="nickname">
      // name 属性必须是唯一标识
      <Input placeholder="请输入昵称" className={styles.fieldInputText}></Input>
    </Field>
    <Field name="password">
      <Input placeholder="请输入密码" className={styles.fieldInputText}></Input>
    </Field>
    <Field name="rePassword">
      <Input placeholder="请输入密码" className={styles.fieldInputText}></Input>
    </Field>
    <Submit className={styles.btnSubmit}>注册</Submit>
  </Form>
</View>;
.app {
  text-align: center;
  padding: 0 24px;
}

.formBox {
  position: relative;
  width: 600px;
  height: 500px;
  background: white;
  border-radius: 20px;
  box-shadow: rgba(17, 12, 46, 0.15) 0px 48px 100px 0px;
  margin: 40px auto 0;
  box-sizing: border-box;
  padding: 40px;
}

.btnSubmit {
  position: absolute;
  bottom: -40px;
  left: 65px;
  background: rgba(79, 128, 242, 1);
  width: 460px;
  height: 80px;
  border-radius: 40px;
  color: white;
  line-height: 80px;
  font-size: 28px;
}

.fieldLabel {
  margin-bottom: 12px;
  font-size: 26px;
  color: #666666;
}
.fieldInputText {
  height: 100px;
  padding: 0 12px;
  margin-bottom: 40px;
  border-bottom: 1px solid rgba(17, 12, 46, 0.15);
}

表单域组件绑定

  • Field 组件 props 里的 name 是表单域组件在表单里的唯一标识,不可重名。
  • Field 的 child 可以是任意实现了 props 包含 value 和 onInput 属性的表单组件,Form 组件会通过 context (具体实现请查阅源码)实现自动绑定数据,自动收集表单组件的输入。
  • AForm 库不实现任何包含 UI 的表单域组件,开发者可以根据业务需要,设置样式。

自定义表单域

在实际业务开发中,经常会需要封装逻辑,样式一致的表单域组件。如下面的 InputBase:

function InputBase(props) {
  return (
    <View>
      <Label className={styles.fieldLabel}>{props.label}</Label>
      <Input
        className={styles.fieldInputText}
        value={props.value}
        onInput={props.onInput}
      ></Input>
    </View>
  );
}

InputBase 里需要手动绑定 value, onInput。但具体逻辑不需要业务侧实现,AForm 内部会根据绑定信息,将正确的 value 和 onInput 传递。

实际使用代码如下:

<Form onSubmit={(data) => console.log(data)} registerError={setErrors}>
  <Field name="nickname" rule={[{ required: true, message: "请输入呢称" }]}>
    {/* @ts-ignore */}
    <InputBase label="昵称:"></InputBase>
  </Field>
  <Field name="password" rule={[{ required: true, message: "请输入密码" }]}>
    {/* @ts-ignore */}
    <InputBase label="密码:"></InputBase>
  </Field>
  <Field name="rePassword" rule={[{ required: true, message: "请输入密码" }]}>
    {/* @ts-ignore */}
    <InputBase label="重复密码:"></InputBase>
  </Field>
  <Submit className={styles.btnSubmit}>注册</Submit>
</Form>

如果项目里使用的 typescript,那么在使用 InputBase 时,由于 typescript 会检查 InputBase props 需要传入 value,onInput ,而实际上 AForm 会自动传入,所以这里需要添加 ts-ignore 。但这样的问题是会关闭表单域组件的类型校验,所以 Field 提供了另一种方式。

推荐使用 component 的方式定义表单域组件

Field 提供了 component 属性用于手动绑定封装的自定义表单域组件。component 需要传入一个函数,该函数返回表单域组件。示例代码如下:

<Field<InputBaseProps>
  name="nickname"
  rule={[{ required: true, message: "请输入呢称" }]}
  component={({value, onInput})=><InputBase value={value} onInput={onInput} />}
  xProps={{ label: "昵称" }}
></Field>
  • component 属性用于传递表单域组件,xProps 用于传入表单域组件除 value,onInput 以外的 props 属性
  • Field 接受一个泛型,用于校验 xProps(已废弃,兼容旧版本) 。

校验数据

AForm 支持下面的校验规则:

  • required (必填)
  • min (数字最小值)
  • max (数字最大值)
  • minLength (字符串最小长度)
  • maxLength (字符串最小长度)
  • pattern (正则校验或自定义校验函数)

规则对象描述如下:

<Field name="password" rule={[{ required: true, message: "请输入密码" }]}>
  {/* @ts-ignore */}
  <InputBase label="密码:"></InputBase>
</Field>

rule 属性支持以数组形式存在的校验规则集,每个规则由规则类型字段(required,min,max,minLength,maxLength,pattern)和错误信息字段组成 required 字段的值是布尔类型 min,max,minLength,maxLength 字段的值是数字 pattern 字段的值是正则表达式或返回布尔值的函数

捕获错误

当定义好了每个表单域的校验规则以后,一般需要在输入时或者表单域失去焦点时校验数据,数据校验不通过时通常需要显示错误信息,以提醒用户修正输入内容。 AForm 通过外部业务组件中出入的 setState 函数,将校验结果返回给外部业务组件。示例代码如下:

import * as React from "react";
import { useState, useEffect } from "react";
import { View, Text, Image, Input, Label } from "remax/wechat";
import {
  ReForm as Form,
  ReField as Field,
  ReSubmit as Submit,
} from "@redchili/aform";
import styles from "./index.css";

function InputBase(props) {
  return (
    <View>
      <Label className={styles.fieldLabel}>{props.label}</Label>
      <Input
        className={styles.fieldInputText}
        value={props.value}
        onInput={props.onInput}
      ></Input>
    </View>
  );
}

export default () => {
  const [errors, setErrors] = useState(); // NOTE-1 外部业务组件定义 state
  useEffect(() => {
    console.log("check", errors);
  }, [errors]);
  return (
    <View className={styles.formBox}>
      {/* NOTE-2 传入 setState 函数,捕获检验结果 */}
      <Form onSubmit={(data) => console.log(data)} registerError={setErrors}>
        <Field
          name="nickname"
          rule={[{ required: true, message: "请输入呢称" }]}
          component={InputBase}
          xProps={{ label: "昵称" }}
        >
          {/* @ts-ignore */}
        </Field>
        <Field
          name="password"
          rule={[{ required: true, message: "请输入密码" }]}
        >
          {/* @ts-ignore */}
          <InputBase label="密码:"></InputBase>
        </Field>
        <Field
          name="rePassword"
          rule={[{ required: true, message: "请输入密码" }]}
        >
          {/* @ts-ignore */}
          <InputBase label="重复密码:"></InputBase>
        </Field>
        <Submit className={styles.btnSubmit}>注册</Submit>
      </Form>
    </View>
  );
};

捕获错误信息的代码在 NOTE-1, 和 NOTE-2 注释

提交请求

表单输入的数据获取时通过 Form 里的 onSubmit 。