javascript – why we use –save in react js command

-–save: When this command is used with npm install this will save all your installed core packages into the dependency section in the package.json file. Core dependencies are those packages without which your application will not give desired results.

–-save-dev: With this command your installed packages will be added to devDependency section of the package.json file. Development dependencies are those packages which only meant for development purpose it will not affect the application’s result.

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