无效的钩子调用。钩子只能在函数组件的主体内部调用。这可能是由于以下原因之一造成的： 1. 你可能有不匹配的 React 版本和渲染器（例如 React DOM） 2. 你可能违反了 Hooks 规则 3. 你可能在同一个应用中拥有多个 React 副本。
我正在开发自己的组件库，并通过 npm 链接在我的应用程序中使用相同的库，但在测试时出现上述错误。
这是我的webpack.config
const path = require('path');
module.exports = {
entry: './src/index.ts',
devtool: 'eval-source-map',
module: {
rules: [
{
// "oneOf" will traverse all following loaders until one will
// match the requirements. When no loader matches it will fall
// back to the "file" loader at the end of the loader list.
oneOf: [
{
test: /\.(tsx|ts|mjs)$/,
exclude: /node_modules/,
use: {
loader: 'babel-loader',
options: {
plugins: [['@babel/plugin-proposal-class-properties'], ['@babel/plugin-transform-runtime', { "regenerator": true }]],
presets: ['@babel/preset-env', '@babel/preset-react', '@babel/preset-typescript'],
},
},
},
{
test: /\.mjs$/,
use: {
loader: 'babel-loader',
options: {
presets: ['@babel/preset-env'],
},
},
},
{
test: /\.(css|scss)$/,
use: [{ loader: 'style-loader' }, { loader: 'css-loader' }, { loader: 'sass-loader' }],
},
// "url" loader works like "file" loader except that it embeds assets
// smaller than specified limit in bytes as data URLs to avoid requests.
// A missing `test` is equivalent to a match.
{
exclude: [/\.js$/, /\.ts$/, /\.html$/, /\.json$/],
loader: require.resolve('url-loader'),
options: {
limit: 10000,
name: 'static/media/[name].[hash:8].[ext]',
},
},
],
},
],
},
resolve: {
extensions: ['.mjs', '.js', '.ts', '.tsx', '.json'],
},
output: {
path: path.resolve(__dirname, 'dist/'),
publicPath: '',
filename: 'bundle.js',
libraryTarget: 'commonjs'
}
};
这是我的package.json
{
"name": "abc",
"version": "1.0.42",
"description": "A React component library",
"main": "dist/bundle.js",
"types": "dist/types/index.d.ts",
"scripts": {
"test": "jest",
"build:development": "npm-run-all --parallel webpack:watch generate-typings",
"build:production": "npm-run-all webpack:prod generate-typings",
"build:clean": "rmdir /Q /S dist",
"generate-typings": "tsc --declaration --emitDeclarationOnly",
"styleguide": "npx styleguidist server",
"styleguide:build": "npx styleguidist build",
"webpack:watch": "webpack --watch --mode=development",
"webpack:prod": "webpack --mode=production",
"localVersion": "node -p \"require('./package.json').version\"> localVersion.txt",
"serverVersion": "npm view @company/abc version > serverVersion.txt"
},
"repository": {
"type": "git",
"url": "url"
},
"keywords": [
"react",
"components",
"typescript"
],
"author": "Spencer Cousino",
"license": "ISC",
"devDependencies": {
"@babel/core": "^7.11.1",
"@babel/plugin-proposal-class-properties": "^7.10.4",
"@babel/preset-env": "^7.11.0",
"@babel/preset-react": "^7.10.4",
"@babel/preset-typescript": "^7.10.4",
"@fortawesome/fontawesome-svg-core": "^1.2.28",
"@fortawesome/free-solid-svg-icons": "^5.13.0",
"@types/enzyme": "^3.10.5",
"@types/fetch-mock": "^7.3.2",
"@types/jest": "^24.9.1",
"@types/nock": "^10.0.3",
"@types/node": "^11.15.9",
"@types/react": "^16.9.0",
"@types/react-dom": "^16.9.0",
"@types/react-table": "^6.8.7",
"async-wait-until": "^1.2.4",
"babel-loader": "^8.1.0",
"css-loader": "^1.0.1",
"enzyme": "^3.11.0",
"enzyme-adapter-react-16": "^1.15.2",
"fetch-mock": "^7.7.3",
"file-loader": "^3.0.1",
"identity-obj-proxy": "^3.0.0",
"jest": "^25.3.0",
"nock": "^10.0.6",
"node-fetch": "^2.6.1",
"node-sass": "^4.14.1",
"npm-run-all": "^4.1.5",
"oidc-client": "^1.10.1",
"powerbi-report-component": "^1.6.0",
"prettier": "1.17.0",
"react": "^16.14.0",
"react-docgen-typescript": "^1.20.1",
"react-dom": "^16.14.0",
"react-router": "^5.1.2",
"react-router-dom": "^5.1.2",
"react-table": "6.10.3",
"react-slick": "^0.23.2",
"react-spinners": "^0.9.0",
"react-styleguidist": "^11.1.5",
"reactstrap": "^8.4.1",
"sass-loader": "^7.3.1",
"ts-jest": "^25.4.0",
"typescript": "^3.8.3",
"url-loader": "^1.1.2",
"webpack": "^4.44.1",
"webpack-cli": "^3.3.12"
},
"dependencies": {
"@babel/plugin-transform-runtime": "^7.12.1",
"@babel/runtime": "^7.12.5",
"@company/abc": "0.0.6",
"@company/abc1": "^1.2.0",
"@company/abc2": "^1.0.23",
"@company/abc3": "^1.9.1",
"@company/abc4": "^1.0.1",
"core-js": "^3.8.0",
"date-fns": "^1.30.1",
"react-bingmaps": "^3.6.1",
"react-bootstrap": "^0.32.3",
"react-grid-layout": "^0.16.6",
"react-scripts": "^4.0.3",
"react-tabs": "^3.1.1",
"slick-carousel": "^1.8.1"
},
"peerDependencies": {
"react": "~16.8.4",
"react-dom": "~16.8.4",
"@types/node": "^11.11.6",
"node-fetch": "^2.3.0",
"oidc-client": "^1.7.0",
"powerbi-report-component": "^1.1.3",
"@fortawesome/fontawesome-svg-core": "^1.2.17",
"@fortawesome/free-solid-svg-icons": "^5.8.1",
"react-slick": "^0.23.2",
"react-spinners": "^0.5.3",
"reactstrap": "^8.0.0"
},
"jest": {
"transform": {
"^.+\\.tsx?$": "ts-jest"
},
"setupFilesAfterEnv": [
"./testSetup.ts"
],
"moduleNameMapper": {
"^.+\\.(css|scss)$": "identity-obj-proxy",
"^.+\\.(svg)$": "<rootDir>/src/mocks/fileMock.js"
},
"moduleFileExtensions": [
"js",
"jsx",
"ts",
"tsx"
],
"collectCoverageFrom": [
"**/context-components/**/*.{js,jsx,ts,tsx}"
]
}
}
我尝试了多种方法，但没有一种对我有用。 任何帮助将不胜感激。
答案 0 :(得分：0)
钩子既可以在 react 组件内部调用，也可以在自定义钩子中调用。如果任何函数返回一些 jsx，则任何函数都是反应组件。
当涉及到 react 时，hooks 中有一些规则。 Rules about react hooks。
如果您想了解自定义挂钩，那么
read about custom hooks here。