Faced with the problem of loading the discord library in visual code?

Question

JavaScript

I installed Node.js on my laptop.
Created a folder, registered `npm init` in PowerShell. The installation was successful.
In Visual Studio Code, I wrote npm i discord.js in the terminal. Instead of downloading, an error occurred:
npm : The name 'npm' is not recognized as the name of a cmdlet, function, script file, or executable
program. Check the spelling of the name and the presence and correctness of the path,
then try again.
line:1 character:1
+ npm discord.js
+ ~~~
+ CategoryInfo : ObjectNotFound: (npm:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException
What does the error mean and how to solve it. (User does not have administrator rights)

Answer 1

Why don't commands installed via npm install work?