I recently came across this in package.json:
"dependencies": {
...,
"npm": "^6.1.0",
...
}
Is there a reason for including this?
Will npm be able to update itself because of this?
If so, will it be successful even if the current version is below 6?
Typically, packages do not follow this practice. Your overall installation of npm will not be impacted by this.
If you want to specify the version of npm required for your package to be installed, it's recommended to use the engines field in the package.json. According to the npm documentation:
The "engines" field can be utilized to indicate which versions of npm are capable of properly installing your program. For example:
{ "engines" : { "npm" : "~1.0.20" } }Unless the user has set the
engine-strictconfiguration flag, this field is merely advisory and will only issue warnings when your package is installed as a dependency.
npm does not block the installation of packages with a different npm version specified in engines, but it will prompt a warning in the console about requesting a varied version of npm than what is being used.
The sole purpose of installing npm as a dependency would be if it's a package that requires using npm's API directly (such as a node_modules/ analyzer, or similar).
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