npm i -g (npm install -g) 1. Global Installation: This command installs a package globally on your system. This means the package's executable files are placed in a directory that's included in your system's PATH environment variable. As a result, you can run the package's commands from any directory in your terminal. For example, npm i -g @angular/cli installs the Angular CLI globally, allowing you to use the ng command anywhere. 2. Pros npm i -g (npm install -g): Convenient for frequently used tools. Commands are readily available from any location. 3.Cons npm i -g (npm install -g): Can lead to version conflicts if different projects require different versions of the same tool. "Pollutes" your global namespace, making it harder to manage dependencies.