Package-lock.json will be formatted in your project directory. You can type -ED too.Īfter we installed a first package in our project we can see some events: For example, -D is the same that -save-dev or -E the same that -save-exact

Some keys have a short way, one hyphen and initial letter.

It’s okay, but if several developer will be working on your project, they in 90% will have a different version of packages. That means “every version from and higher”. If you will forget this key your package will be install with ^ sign. save-exact key is saying to install exact version of the package (usually more newer). It’s no problem but there is a logical split:ĭevDependencies packages is need it for development, dependencies packages is need it for app working. If you will forget this key your package will be installed in dependencies section. save-dev key will install the package in devDependencies section in a package.json file. The are need it to clarify how to install the package. save-dev and -save-exact are the specifying commands. The most terminal commands have additional settings. Enter fullscreen mode Exit fullscreen mode

Create node js project