CODEWITHSUNDEEP
node.jsnpmnode-modulesnpm-install
Iter Ator
Iter Ator

Reputation: 9299

Npm install ignores tilde (~) in version number

I would like to install 1.8.x version a package, and be able to later automatically update this dependency inside the >=1.8.0 <1.9.0 range.

I tried to run this command:

npm install example-package@~1.8 --save

Unfortunately it adds this record to my package.json:

"example-package" : "^1.8.0"

But what I want is this:

"example-package" : "~1.8.0"

How is it possible to do it with npm install, without manually edit the package.json file?

Upvotes: 8

Views: 2960

Answers (1)

RobC
RobC

Reputation: 25032

The semver prefix is defined by the save-prefix config. The default value is a caret (^) which you can check by running the following npm config command:

npm config get save-prefix

Unfortunately, the npm install command has no option to specify this, so what you'll need to do is:

  1. Set the save-prefix value to a tilde (~) by running:

    npm config set save-prefix="~"

  2. Install your package by running:

    npm i [email protected] --save

    Note: The tilde (~) must not be included in the install command.

  3. Finally, set the save-prefix value back to it's default, i.e. a caret (^) by running:

    npm config delete save-prefix

    Note: You wouldn't do this last step if you wanted all future npm install's to use the tilde (~) prefix instead of a caret (^).

The above steps will add the following record in package.json:

"example-package" : "~1.8.0"

Note the tilde ~ instead of the default caret ^

You can utilize the && operator to combine the aforementioned commands into a compound command. For instance:

npm config set save-prefix="~" && npm i [email protected] --save && npm config delete save-prefix

Upvotes: 17

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