npm(Node Package manager)幫助node完成第三方模塊的發(fā)布,安裝和依賴。
配置node和npm
* 訪問[Node.js官網(wǎng)](https://nodejs.org/)下載適用于Mac的Node.js安裝包。
* 安裝完成后,你可以通過打開終端(Terminal)并輸入 `node -v` 和 `npm -v` 來檢查Node.js和npm是否成功安裝。
安裝react和react-dom兩個npm包
- react是核心,提供創(chuàng)建元素,組件等功能。
- react-dom是提供dom相關功能
npm i react react-dom
其他
- 了解node和npm如果獲取安裝版本
- 授權
.npm文件
npm ERR! code EACCES
npm ERR! syscall open
npm ERR! path /Users/gaoguangxiao/.npm/_cacache/tmp/605e251e
npm ERR! errno -13
npm ERR!
npm ERR! Your cache folder contains root-owned files, due to a bug in
npm ERR! previous versions of npm which has since been addressed.
npm ERR!
npm ERR! To permanently fix this problem, please run:
npm ERR! sudo chown -R 501:20 "/Users/gaoguangxiao/.npm"
npm ERR! A complete log of this run can be found in: /Users/gaoguangxiao/.npm/_logs/2024-04-29T07_37_35_596Z-debug-0.log