npx browserslist@latest --update-db 和npx update-browserslist-db@lates
在前端执行变异的时候，控制台提示npx browserslist@latest --update-db 请问这个下令是做什么的$ npm run build
\
> web@3.0.0 build /home/liwei/PycharmProjects/web
> react-app-rewired build
Creating an optimized production build...
Browserslist: caniuse-lite is outdated. Please run:
npx browserslist@latest --update-db
Why you should do it regularly: https://github.com/browserslist/browserslist#browsers-data-updating
Compiled successfully.
File sizes after gzip:
2.32 MB (+70 B) build/static/js/16.822e2e5f.chunk.js
278.06 KB (+1.5 KB)build/static/js/main.88af4464.chunk.js
79.69 KB (+1.23 KB)build/static/css/main.ec8d2b92.chunk.css
3.13 KB build/static/css/16.6fa41d69.chunk.css
3.07 KB (+1 B) build/static/js/reactPlayerFilePlayer.02adccc0.chunk.js
2.08 KB (+1 B) build/static/js/reactPlayerMux.8a85c963.chunk.js
2.05 KB (+2 B) build/static/js/reactPlayerYouTube.ecd39187.chunk.js
1.54 KB (+3 B) build/static/js/reactPlayerWistia.e0592d94.chunk.js
1.5 KB (+3 B) build/static/js/reactPlayerVimeo.3e2dfb94.chunk.js
1.43 KB (+3 B) build/static/js/reactPlayerFacebook.45676046.chunk.js
1.41 KB (+1 B) build/static/js/reactPlayerPreview.da69ae74.chunk.js
1.4 KB (+2 B) build/static/js/reactPlayerTwitch.9c133d0d.chunk.js
1.38 KB (+1 B) build/static/js/runtime-main.bb27a88c.js
1.38 KB (+2 B) build/static/js/reactPlayerDailyMotion.98099b29.chunk.js
1.36 KB (+1 B) build/static/js/reactPlayerSoundCloud.083fc502.chunk.js
1.32 KB (+2 B) build/static/js/reactPlayerVidyard.246075e1.chunk.js
1.32 KB (-1 B) build/static/js/reactPlayerStreamable.095f2920.chunk.js
1.3 KB (+1 B) build/static/js/reactPlayerKaltura.3de4dcde.chunk.js
1.27 KB (+2 B) build/static/js/reactPlayerMixcloud.ff0de6b1.chunk.js
The bundle size is significantly larger than recommended.
Consider reducing it with code splitting: https://goo.gl/9VhYWB
You can also analyze the project dependencies: https://goo.gl/LeUzfb
The project was built assuming it is hosted at /.
You can control this with the homepage field in your package.json.
The build folder is ready to be deployed.
You may serve it with a static server:
npm install -g serve
serve -s build
Find out more about deployment here:
bit.ly/CRA-deploy
liwei@vmfordev:~/PycharmProjects/web$ npx browserslist@latest --update-db
npx: 7 安装成功，用时 3.701 秒
The --update-db command is deprecated.
Please use npx update-browserslist-db@latest instead.
Browserslist DB update will still be made.
Latest version: 1.0.30001612
Installed version:1.0.30001320
Removing old caniuse-lite from lock file
Installing new caniuse-lite version
$ npm install caniuse-lite
npm WARN @babel/plugin-bugfix-v8-spread-parameters-in-optional-chaining@7.15.4 requires a peer of @babel/core@^7.13.0 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-proposal-class-static-block@7.15.4 requires a peer of @babel/core@^7.12.0 but none is installed. You must install peer dependencies yourself.
npm WARN @wangeditor/editor-for-react@1.0.2 requires a peer of react@>=17.0.2 but none is installed. You must install peer dependencies yourself.
npm WARN @wangeditor/editor-for-react@1.0.2 requires a peer of react-dom@>=17.0.2 but none is installed. You must install peer dependencies yourself.
npm WARN react-markdown@8.0.7 requires a peer of @types/react@>=16 but none is installed. You must install peer dependencies yourself.
npm WARN react-visibility-sensor@3.6.2 requires a peer of react@^0.14.0 || ^15.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN react-visibility-sensor@3.6.2 requires a peer of react-dom@^0.14.0 || ^15.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN tsutils@3.21.0 requires a peer of typescript@>=2.8.0 || >= 3.2.0-dev || >= 3.3.0-dev || >= 3.4.0-dev || >= 3.5.0-dev || >= 3.6.0-dev || >= 3.6.0-beta || >= 3.7.0-dev || >= 3.7.0-beta but none is installed. You must install peer dependencies yourself.
npm WARN worker-loader@0.8.1 requires a peer of webpack@>=0.9 <2 || ^2.1.0-beta || ^2.2.0 but none is installed. You must install peer dependencies yourself.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.3.2 (node_modules/chokidar/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.3.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.1.2 (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/jest-haste-map/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/watchpack-chokidar2/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/webpack-dev-server/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
Cleaning package.json dependencies from caniuse-lite
$ npm uninstall caniuse-lite
npm WARN @babel/plugin-bugfix-v8-spread-parameters-in-optional-chaining@7.15.4 requires a peer of @babel/core@^7.13.0 but none is installed. You must install peer dependencies yourself.
npm WARN @babel/plugin-proposal-class-static-block@7.15.4 requires a peer of @babel/core@^7.12.0 but none is installed. You must install peer dependencies yourself.
npm WARN @wangeditor/editor-for-react@1.0.2 requires a peer of react@>=17.0.2 but none is installed. You must install peer dependencies yourself.
npm WARN @wangeditor/editor-for-react@1.0.2 requires a peer of react-dom@>=17.0.2 but none is installed. You must install peer dependencies yourself.
npm WARN react-markdown@8.0.7 requires a peer of @types/react@>=16 but none is installed. You must install peer dependencies yourself.
npm WARN react-visibility-sensor@3.6.2 requires a peer of react@^0.14.0 || ^15.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN react-visibility-sensor@3.6.2 requires a peer of react-dom@^0.14.0 || ^15.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN tsutils@3.21.0 requires a peer of typescript@>=2.8.0 || >= 3.2.0-dev || >= 3.3.0-dev || >= 3.4.0-dev || >= 3.5.0-dev || >= 3.6.0-dev || >= 3.6.0-beta || >= 3.7.0-dev || >= 3.7.0-beta but none is installed. You must install peer dependencies yourself.
npm WARN worker-loader@0.8.1 requires a peer of webpack@>=0.9 <2 || ^2.1.0-beta || ^2.2.0 but none is installed. You must install peer dependencies yourself.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.3.2 (node_modules/chokidar/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.3.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.1.2 (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/jest-haste-map/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/watchpack-chokidar2/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/webpack-dev-server/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
caniuse-lite has been successfully updated
No target browser changes
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