javascript - npm install the exact package version specified in package.json

Question

Currently, If I run npm install, it installs the updated version of already installed packages. How can I install the exact version as specified in the package.json file?

Answer 1

By default npm installs packages using ^ which means any version in the same major range, you can switch this behaviour by using --save-exact

// npm
npm install --save --save-exact react

// yarn
yarn add --exact react

I created a blog post about this if anyone is looking for this in the future.

https://www.dalejefferson.com/articles/2018-02-04-how-to-save-exact-npm-package-versions/