Chengfang Lu
e72bc061c5
Major changes: - New frontend (platform/web/): Vite + React 18 + TypeScript + Tailwind - 4-module navigation: 数据送标 / 模型管理 / 车队管理 / 系统管理 - Data catalog with charts (DMS/ADAS/Lane 3-tab view) - Quality review workflow (标注质检): Good/Fine/Bad scoring with auto-advance - Audit enhancements: batch operations, rejection categories, Feishu notifications - Operation audit log (操作日志) - World model simulation studio (仿真工坊) - Dataset version management with snapshots and diff - ADAS 7-class dataset integration (138K images organized + compressed) - User management with Feishu integration and pagination - CRUD/search/filter on all pages, card layout redesign - PIL-optimized image overlay rendering - Auto-snapshot on build, in_review workflow stage - Removed embedded algorithm code (now in workspace)
105 lines
2.3 KiB
Markdown
105 lines
2.3 KiB
Markdown
# `react-is`
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This package allows you to test arbitrary values and see if they're a particular React element type.
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## Installation
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```sh
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# Yarn
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yarn add react-is
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# NPM
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npm install react-is
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```
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## Usage
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### Determining if a Component is Valid
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```js
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import React from "react";
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import * as ReactIs from "react-is";
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class ClassComponent extends React.Component {
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render() {
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return React.createElement("div");
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}
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}
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const FunctionComponent = () => React.createElement("div");
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const ForwardRefComponent = React.forwardRef((props, ref) =>
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React.createElement(Component, { forwardedRef: ref, ...props })
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);
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const Context = React.createContext(false);
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ReactIs.isValidElementType("div"); // true
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ReactIs.isValidElementType(ClassComponent); // true
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ReactIs.isValidElementType(FunctionComponent); // true
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ReactIs.isValidElementType(ForwardRefComponent); // true
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ReactIs.isValidElementType(Context.Provider); // true
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ReactIs.isValidElementType(Context.Consumer); // true
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ReactIs.isValidElementType(React.createFactory("div")); // true
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```
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### Determining an Element's Type
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#### Context
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```js
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import React from "react";
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import * as ReactIs from 'react-is';
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const ThemeContext = React.createContext("blue");
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ReactIs.isContextConsumer(<ThemeContext.Consumer />); // true
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ReactIs.isContextProvider(<ThemeContext.Provider />); // true
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ReactIs.typeOf(<ThemeContext.Provider />) === ReactIs.ContextProvider; // true
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ReactIs.typeOf(<ThemeContext.Consumer />) === ReactIs.ContextConsumer; // true
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```
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#### Element
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```js
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import React from "react";
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import * as ReactIs from 'react-is';
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ReactIs.isElement(<div />); // true
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ReactIs.typeOf(<div />) === ReactIs.Element; // true
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```
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#### Fragment
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```js
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import React from "react";
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import * as ReactIs from 'react-is';
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ReactIs.isFragment(<></>); // true
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ReactIs.typeOf(<></>) === ReactIs.Fragment; // true
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```
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#### Portal
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```js
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import React from "react";
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import ReactDOM from "react-dom";
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import * as ReactIs from 'react-is';
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const div = document.createElement("div");
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const portal = ReactDOM.createPortal(<div />, div);
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ReactIs.isPortal(portal); // true
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ReactIs.typeOf(portal) === ReactIs.Portal; // true
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```
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#### StrictMode
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```js
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import React from "react";
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import * as ReactIs from 'react-is';
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ReactIs.isStrictMode(<React.StrictMode />); // true
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ReactIs.typeOf(<React.StrictMode />) === ReactIs.StrictMode; // true
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```
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