Difference between npm i and npm ci in Node.js
The following difference covers how npm i and npm ci command are different from each other and their functioning. The npm which is called a node package manager which is used for managing modules needed for our application.
npm i: The npm i (or npm install) is used to install all dependencies or devDependencies from a package.json file.
npm install "package-name"
npm i "package-name"
npm ci: CI stands for clean install and npm ci is used to install all exact version dependencies or devDependencies from a package-lock.json file.
Differences between npm i and npm ci are:
||It installs a package and all its dependencies.
||It is generally used to install dependencies.
||It may write to package.json or package-lock.json.
||It never writes to package.json or package-lock.json.
||Individual dependencies can be added with this command.
||Individual dependencies cannot be added with this command.
||It is slower in execution.
||It is faster in execution.
||If any dependency is not in package-lock.json, This command will add it.
||If any dependencies are missing or have incompatible versions, then npm ci will throw an error.
||If a node_modules is already present, This Command doesn’t change anything to it.
||If a node_modules is already present, it will be automatically removed before npm ci begins its install.
||It can install global packages.
||It can not install global packages.
||The npm i package-name is used to write to package.json to add or update dependencies.
||It can’t be used to write to package.json.
||npm i may write to package-lock.json to lock version of some dependencies.
||It can’t write to package-lock.json.
||Used during development after pulling changes that update the list of dependencies.
||Used for the deterministic, repeatable build.
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