how to install http in terminal in Macbook pro 2021?

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I'm trying to install http using terminal for vscode in Macbookpro

this is the website that I use and what I try to install:

p5.js manager https://www.youtube.com/watch?v=LdWleSHQTcw sudo npm install -g p5-manager

Workflow: Node https://www.youtube.com/watch?v=FjWbUK2HdCo sudo npm install http-server -g

I can't even use sudo in terminal due to password but I just type the password and a weird box pop up what to do next?

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When I use Mac terminal then I can't even click on the key and I can only press enter only

using Mac terminal: ➜ ~ sudo npm install -g p5-manager

Password:

Sorry, try again.

Password:

Sorry, try again.

Password:

sudo: 3 incorrect password attempts

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I keep getting error and password key keeping popping up, by using iterm2

using item2 terminal click on key a box appear I type my password then a box appear, close the box , then same error 3 incorrect password again

First: first/Pic1

Second: Pic2

Third: enter image description here

Fourth: enter image description here

yes I don't know what to do next in the Third Picture, so I just click close, same error...

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how to know if http install which command line do I use, like how I know if I install node.js by typing "node -v"

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and how to uninstall http or any other that I just install in the terminal, I just want to uninstall "npm install --save http-server" that I just type in terminal a few day ago in this website

Problem with npm install --global http-server

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NetLordOfData On

I just go to YouTube type "mac sudo terminal password key" found this video:

Entering Password in Terminal - MacOS and Unix based system https://www.youtube.com/watch?v=oNKiU9aOFB4

I guess the reason I did not get it the first time cause I do not understand how the terminal work, basically when you type in the password in every website it show dot 1 to 10 like this password.........., but for terminal only key and nothing change, so just type password then press enter