npm的操作

生成package.json文件
npm init --yes

npm中查看和安装package
npm list
npm list simditor

npm install simditor -g
npm install simditor

npm uninstall simditor

在npm中安装固定的版本号package

npm install --save simditor@2.3.6

npm install --save simditor@^2.3.6

npm install --save simditor@~2.3.6

更新npm
bundle exec rake npm:clean
bundle exec rake npm:install