Install Different Node Version on Mac

Posted 2020-12-29 juliazhang

Whether npm or other front-ent package manager tools are all writtent by node, therefor, if we want to use it, we should install node at first.

https://nodejs.org/en/

After installing node, we will get npm to manage your javascript packages.

As we all know, npm is a package manager for JavaScript and word‘s largest software register. Recently, I found a tool like npm and more stronger than npm on mac system, that is Hombrew. So maybe you will ask what‘s the difference between npm and homebrew

• Difference between homebrew and npm

  This is a rough, inaccurate answer, but it’s very easy to understand and it can give you a quick preview:
  
  Homebrew is like the Mac App Store: it installs softwares that can be used in the whole system.
  npm is like the Extension manager in Chrome: it can only add function extensions within a single app.

• Installation

  $ npm install homebrew

  For now, maybe you want to install different node version on one operating system, then "nvm" will help you solve this problem.

  https://github.com/creationix/nvm/blob/master/README.md

  you can use bellow command to check node version or other nvm commands

  nvm --help
  Usage:
    nvm --help                                Show this message
    nvm --version                             Print out the installed version of nvm
    nvm install [-s] <version>                Download and install a <version>, [-s] from source. Uses .nvmrc if available
      --reinstall-packages-from=<version>     When installing, reinstall packages installed in <node|iojs|node version number>
      --lts                                   When installing, only select from LTS (long-term support) versions
      --lts=<LTS name>                        When installing, only select from versions for a specific LTS line
      --skip-default-packages                 When installing, skip the default-packages file if it exists
      --latest-npm                            After installing, attempt to upgrade to the latest working npm on the given node version
    nvm uninstall <version>                   Uninstall a version
    nvm uninstall --lts                       Uninstall using automatic LTS (long-term support) alias `lts/*`, if available.
    nvm uninstall --lts=<LTS name>            Uninstall using automatic alias for provided LTS line, if available.
    nvm use [--silent] <version>              Modify PATH to use <version>. Uses .nvmrc if available
      --lts                                   Uses automatic LTS (long-term support) alias `lts/*`, if available.
      --lts=<LTS name>                        Uses automatic alias for provided LTS line, if available.
    nvm exec [--silent] <version> [<command>] Run <command> on <version>. Uses .nvmrc if available
      --lts                                   Uses automatic LTS (long-term support) alias `lts/*`, if available.
      --lts=<LTS name>                        Uses automatic alias for provided LTS line, if available.
    nvm run [--silent] <version> [<args>]     Run `node` on <version> with <args> as arguments. Uses .nvmrc if available
      --lts                                   Uses automatic LTS (long-term support) alias `lts/*`, if available.
      --lts=<LTS name>                        Uses automatic alias for provided LTS line, if available.
    nvm current                               Display currently activated version
    nvm ls                                    List installed versions
    nvm ls <version>                          List versions matching a given <version>
    nvm ls-remote                             List remote versions available for install
      --lts                                   When listing, only show LTS (long-term support) versions
    nvm ls-remote <version>                   List remote versions available for install, matching a given <version>
      --lts                                   When listing, only show LTS (long-term support) versions
      --lts=<LTS name>                        When listing, only show versions for a specific LTS line
    nvm version <version>                     Resolve the given description to a single local version
    nvm version-remote <version>              Resolve the given description to a single remote version
      --lts                                   When listing, only select from LTS (long-term support) versions
      --lts=<LTS name>                        When listing, only select from versions for a specific LTS line
    nvm deactivate                            Undo effects of `nvm` on current shell
    nvm alias [<pattern>]                     Show all aliases beginning with <pattern>
    nvm alias <name> <version>                Set an alias named <name> pointing to <version>
    nvm unalias <name>                        Deletes the alias named <name>