# install 3m安裝法 * nvm * npm * nrm ## 安裝nvm ~~~ curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.29.0/install.sh | bash ~~~ cat ~/.bashrc ~~~ export NVM_DIR="/home/coding/.nvm" [ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm ~~~ 但coding默認使用的zsh，所以需要把環境變量放到 ~~~ vi ~/.zshrc ~~~ 追加 ~~~ export NVM_DIR="/home/coding/.nvm" [ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm ~~~ 然后，source使環境變量生效 ~~~ source ~/.zshrc ~~~ ## 安裝nodejs 4.2是LTS是長期支持版本，無論是開發還是產品模式都推薦安裝4.2版本。 ~~~ nvm install 4.2 ~~~ 默認使用4.2版本進行編譯，操作如下： ~~~ ? workspace git:(i5ting) nvm alias default 4.2 default -> 4.2 (-> v4.2.2) ~~~ 此時，你輸入`node -v` ~~~ ? workspace git:(i5ting) node -v v4.2.2 ~~~ 如果想安裝其他版本，請參照上面步驟 ## 安裝或更新npm ~~~ ? nodejs-practice git:(master) ? node -v v4.0.0 ? nodejs-practice git:(master) ? npm -v 2.14.2 ? nodejs-practice git:(master) ? npm install -g npm@2.9 ~~~ 說明npm 3.x和2.x差別非常大，3.x目前還不夠穩定，建議用2.x ## 安裝nrm(npm registry manager) [https://github.com/Pana/nrm](https://github.com/Pana/nrm) nrm can help you easy and fast switch between different npm registries, now include: npm, cnpm, eu, au, sl(strongloop), nj(nodejitsu), pt(Portuguese). Recently npm has some problem frequently, nrm will be helpful to all noders. registry是指從哪個源下載nodejs模塊 ~~~ $ npm install -g nrm ~~~ * nrm test * nrm ls * nrm use