npm completely won't work: "Error: Cannot find module 'isarray'" - node.js

Question

So every time I try us any npm command I get the same error:
module.js:472
throw err;
^
Error: Cannot find module 'isarray'
at Function.Module._resolveFilename (module.js:470:15)
at Function.Module._load (module.js:418:25)
at Module.require (module.js:498:17)
at require (internal/module.js:20:19)
at Object.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/readable-stream/lib/_stream_readable.js:32:15)
at Module._compile (module.js:571:32)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:488:32)
at tryModuleLoad (module.js:447:12)
at Function.Module._load (module.js:439:3)
Even when I try running npm install isarray I get the same exact error.
I've tried uninstalling the dependencies and then running npm install and I get the same error. I've tried completely reinstalling npm AND node and I still get the same error.
If I need this package to install this package I don't know what else to do.

Answer 1

In my case, this was cause of node and npm version.
Try to update your node and npm version.
First, Node update is
//Clean node Cache
sudo npm cache clean -f
//Install n Module
sudo npm install -g n
//Install stable Node version Using n Module
sudo n stable
IF this is not worked, then use 'nvm' (In my case, below is worked.)
nvm install 8.10.0
You can check your node version by 'node -v'
Second, npm update.
sudo npm install -g npm
You can also check your npm version by 'npm -v'
I hope this will be helpful!