While direct installation can be done, it might be better to do it by using nvm to install nodejs.
If there are already any nodejs or npm version installed on your system and you want to remove it, you can do so by (not mandatory)
sudo apt remove nodejs sudo apt remove npm
First let’s get started with installing Node Version Manager (nvm)
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash
All the details of nvm can be found on it’s github page.
This will download the nvm package to our local, install it and set the path of nvm in bash.
The terminal will ask to restart to be able to load the new command.
Restart the terminal and type in
nvm --version
This will return the currently installed version. For me, the result was
0.33.11
Then we can start with the installation of node.
The next few commands can be run independently, so make sure that you run the one as per your requirement.
1. Installing the latest version of node
nvm install node
The version installed by the above command will be the default node version.
To verify if node actually got installed, you can type
node --version
or
node -v
For me it resulted in
v12.6.0
2. To install the long term release (lts) version (which you should be using for production level applications), type
nvm install --lts
3. To install any particular versions, type
npm install 4.9.1
To see the all the node versions installed/available, type
nvm ls
For me, this resulted in
v10.16.0
-> v12.6.0
system
default -> node (-> v12.6.0)
node -> stable (-> v12.6.0) (default)
stable -> 12.6 (-> v12.6.0) (default)
iojs -> N/A (default)
lts/* -> lts/dubnium (-> v10.16.0)
lts/argon -> v4.9.1 (-> N/A)
lts/boron -> v6.17.1 (-> N/A)
lts/carbon -> v8.16.0 (-> N/A)
lts/dubnium -> v10.16.0
The one with the arrow mark, signifies the default node version.
We can change the current active version by typing in
nvm use 10.16.0
This results in
Now using node v10.16.0 (npm v6.9.0)
To change the default node version,
nvm alias default 10.16.0
Results in
default -> 10.16.0 (-> v10.16.0)
To uninstall any version, we can use
nvm uninstall 12.6.0 or nvm uninstall node // This will remove the latest node version installed
Before firing the uninstall command, please make sure to change the active version to any other version (by using nvm use version_no, else it won’t uninstall, and would throw the error
nvm: Cannot uninstall currently-active node version, v12.6.0 (inferred from 12.6.0).
We can check for the changed status by typing nvm ls everytime you execute any command.
Using nvm to install nodejs will help in the long run when we want are working on different projects having different node versions.
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