Installing Node.js

Installation Link

The installation link is shown. It is suggested to install via this link as opposed to by cli.

Working Directory

To run tests on our install, we will want to use a "working directory" (wd). Nothing fancy, just a directory on our
computer. However, there is one gotcha noted here:

See "Beware Of GOTCHA!" here

Now create a working directory.

Opening Console

In the next steps we will need to use the console.
See this for tips on how to open the console:

Opening Console

Show Version

Open up a console
Now run the "node -v" command as shown highlighted to the right
You should see a "version" that looks similar to that shown here to the right (your actual number may vary)

>node -v
v14.15.4

Check File

Copy the files from this ZIP into your working directory (from prev step)
Open up a console in the same directory as the js file (i.e. your working directory)
Now type in and run the command "node install-check.js" as shown highlighted to the right
The results should be as shown to the right

>node install-check.js

CHECK 1-2-3
(8 + 7) * 10 = 150
Mathy check: OKAY

Gotcha

Make sure you have "package.json" in the directory along with your js file when you run node (you can use the "package.json" in the ZIP that is provided in the previous step -- it is a minimal package file that will suffice when just running basic js).

We'll learn more about this package file later when we start doing node projects.

package.json

Gotcha

Commands are picky. We want this:

node install-check.js

And want to watch out for typos (extra space in first, extra "@" in second):

node install-check. js
@node install-check. js

node install-check.js

Just FYI

Here are several examples of how to run "node".

>node my-fun-file.js
>node foo.js
>node one-more.js