(source: https://askubuntu.com/a/1291854) I executed the following commands (May 2022):

sudo apt update
curl -sL https://deb.nodesource.com/setup_14.x | sudo bash -
sudo apt install -y nodejs
node -v

After running the last command I saw:

$ node -v
v14.19.2

However, due to what I am almost confident are broken dependencies issues among my packages, the installation of node messed up my npm and I was unable to re-install it with conventional means. As such, I had to download the node tarball from here, explode the tarball in a directory and set in my PATH the path to node-v14.16.0-linux-x64/bin (wherein the npm executable is to be found). This was mighty iffy and unsettling.

npm install -g npm-check-updates
ncu -u
npm update     # use this if node_modules already exists
npm install    # use this otherwise
      

I've used the nodemon package for that. See target monitor in package.json in my ora2pg migration assessment github project

I tried this to update to the latest major version and it worked like a charm.

By combining this SO answer with that SO answer, one can arrive at the following solution:

export npm_config_cache=$(shell mktemp -d)

install:
    @printf "using throw-away cache at: [$$npm_config_cache]\n"
    npm install
    @du -h $$npm_config_cache | printf "size of temp cache is: $$(du -h . | tail -1 | cut -f1)\n"
    @rm -fr $$npm_config_cache
    @printf "temporary cache at: $$npm_config_cache is now deleted.\n"

clean:
    rm -fr node_modules/
    rm -f es5/*.js
    rm -f es5/*.map
    npm cache -f clean # this is not really necessary as we're using a throw-away cache 

npm publish --ignore-scripts

    export NODE_PATH=$NODE_PATH:~/.node_modules_global/lib/node_modules
      

• won't work with "use strict"
• useful for "quick and dirty" using JS libs designed for client-side into a node.js app

var fs = require('fs');
// file is included here:
eval(fs.readFileSync('file-to-include.js')+'');
      

$ node
> fs = require('fs');
> fs.writeFileSync('fs.js', fs.toString())
> fs.writeFileSync('fs.readFileSync.js', fs.readFileSync.toString())
[Ctrl-C][Ctrl-C]

sudo npm install npm@3 -g
$ npm -version
3.8.0
      

apt-key adv --keyserver keyserver.ubuntu.com --recv 68576280
apt-add-repository 'deb https://deb.nodesource.com/node_4.x precise main'
apt-get update
apt-get install nodejs
      

$ ls /usr/bin/node
lrwxrwxrwx 1 root root 22 Mar  7 10:23 /usr/bin/node -> /etc/alternatives/node*
$ ls /etc/alternatives/node
lrwxrwxrwx 1 root root 15 Mar  7 10:23 /etc/alternatives/node -> /usr/bin/nodejs*
      

1. sudo apt-get install ruby-dev
2. sudo gem install rdoc -V
3. sudo gem install guard -V
4. sudo gem install guard-livereload -V

• A sample Guardfile
• The Gemfile to be used

1. sudo gem install guard-livereload
2. sudo apt-get install bundler
3. ln -s ~/playground/repo-wide-scripts/Gemfile
4. ln -s ~/playground/repo-wide-scripts/Guardfile
5. ln -s ~/playground/repo-wide-scripts/run-guard

        ~/playground/javascript-you-dont-know