–save or -S: When the following command is used with npm install this will save all your installed core packages into the dependency section in the package.json file.NPM has several commands which are listed below: If you are using a recent version of npm save yourself from unnecessary typing and use npm install instead of npm install -save by default it will add the installed package to the dependency list in the package.json file.

How to update Node.js and NPM to next version ?īefore npm 5.0.0, it was necessary to add -save after package name because it will save the installed package to package.json file in the dependency section.Must use JavaScript Array Functions – Part 3.Most useful JavaScript Array Functions – Part 2.How to check if a variable is an array in JavaScript?.

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Npm save flag