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

1. $ npm run build
2. \
3. > web@3.0.0 build /home/liwei/PycharmProjects/web
4. > react-app-rewired build
6. Creating an optimized production build...
7. Browserslist: caniuse-lite is outdated. Please run:
8.   npx browserslist@latest --update-db
9.   Why you should do it regularly: https://github.com/browserslist/browserslist#browsers-data-updating
10. Compiled successfully.
12. File sizes after gzip:
14.   2.32 MB (+70 B)      build/static/js/16.822e2e5f.chunk.js
15.   278.06 KB (+1.5 KB)  build/static/js/main.88af4464.chunk.js
16.   79.69 KB (+1.23 KB)  build/static/css/main.ec8d2b92.chunk.css
17.   3.13 KB              build/static/css/16.6fa41d69.chunk.css
18.   3.07 KB (+1 B)       build/static/js/reactPlayerFilePlayer.02adccc0.chunk.js
19.   2.08 KB (+1 B)       build/static/js/reactPlayerMux.8a85c963.chunk.js
20.   2.05 KB (+2 B)       build/static/js/reactPlayerYouTube.ecd39187.chunk.js
21.   1.54 KB (+3 B)       build/static/js/reactPlayerWistia.e0592d94.chunk.js
22.   1.5 KB (+3 B)        build/static/js/reactPlayerVimeo.3e2dfb94.chunk.js
23.   1.43 KB (+3 B)       build/static/js/reactPlayerFacebook.45676046.chunk.js
24.   1.41 KB (+1 B)       build/static/js/reactPlayerPreview.da69ae74.chunk.js
25.   1.4 KB (+2 B)        build/static/js/reactPlayerTwitch.9c133d0d.chunk.js
26.   1.38 KB (+1 B)       build/static/js/runtime-main.bb27a88c.js
27.   1.38 KB (+2 B)       build/static/js/reactPlayerDailyMotion.98099b29.chunk.js
28.   1.36 KB (+1 B)       build/static/js/reactPlayerSoundCloud.083fc502.chunk.js
29.   1.32 KB (+2 B)       build/static/js/reactPlayerVidyard.246075e1.chunk.js
30.   1.32 KB (-1 B)       build/static/js/reactPlayerStreamable.095f2920.chunk.js
31.   1.3 KB (+1 B)        build/static/js/reactPlayerKaltura.3de4dcde.chunk.js
32.   1.27 KB (+2 B)       build/static/js/reactPlayerMixcloud.ff0de6b1.chunk.js
34. The bundle size is significantly larger than recommended.
35. Consider reducing it with code splitting: https://goo.gl/9VhYWB
36. You can also analyze the project dependencies: https://goo.gl/LeUzfb
38. The project was built assuming it is hosted at /.
39. You can control this with the homepage field in your package.json.
41. The build folder is ready to be deployed.
42. You may serve it with a static server:
44.   npm install -g serve
45.   serve -s build
47. Find out more about deployment here:
49.   bit.ly/CRA-deploy
51. liwei@vmfordev:~/PycharmProjects/web$ npx browserslist@latest --update-db
52. npx: 7 安装成功，用时 3.701 秒
53. The --update-db command is deprecated.
54. Please use npx update-browserslist-db@latest instead.
55. Browserslist DB update will still be made.
56. Latest version:     1.0.30001612
57. Installed version:  1.0.30001320
58. Removing old caniuse-lite from lock file
59. Installing new caniuse-lite version
60. $ npm install caniuse-lite
61. 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.
62. 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.
63. 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.
64. 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.
65. npm WARN react-markdown@8.0.7 requires a peer of @types/react@>=16 but none is installed. You must install peer dependencies yourself.
66. 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.
67. 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.
68. 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.
69. 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.
70. npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.3.2 (node_modules/chokidar/node_modules/fsevents):
71. npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.3.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
72. npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.1.2 (node_modules/fsevents):
73. npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
74. npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/jest-haste-map/node_modules/fsevents):
75. npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
76. npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/watchpack-chokidar2/node_modules/fsevents):
77. npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
78. npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/webpack-dev-server/node_modules/fsevents):
79. npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
81. Cleaning package.json dependencies from caniuse-lite
82. $ npm uninstall caniuse-lite
83. 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.
84. 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.
85. 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.
86. 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.
87. npm WARN react-markdown@8.0.7 requires a peer of @types/react@>=16 but none is installed. You must install peer dependencies yourself.
88. 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.
89. 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.
90. 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.
91. 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.
92. npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.3.2 (node_modules/chokidar/node_modules/fsevents):
93. npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.3.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
94. npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.1.2 (node_modules/fsevents):
95. npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
96. npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/jest-haste-map/node_modules/fsevents):
97. npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
98. npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/watchpack-chokidar2/node_modules/fsevents):
99. npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
100. npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/webpack-dev-server/node_modules/fsevents):
101. npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
103. caniuse-lite has been successfully updated
105. No target browser changes

复制代码

免责声明：如果侵犯了您的权益，请联系站长，我们会及时删除侵权内容，谢谢合作！更多信息从访问主页：qidao123.com:ToB企服之家，中国第一个企服评测及商务社交产业平台。