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Some people use the — save option when installing packages with npm.What does the — save option do?
npm install packagename --save
Npm is a package manager for node.
When you download a package using the npm command, it installs the packages in the node_modules folder and adds the installed module as a dependency in your package.json file.
Npm installed the packages in node _modules before the 5.0.0, but didn’t make them a dependency by default.
If you wanted to save the module as a dependency in the package.json file, you had to do it using the — save or -S option .
As of version 5.0.0, you no longer need to use this option.
