nodeのパッケージのアップデートに便利。

アップデート内容確認

$ ncu

 autoprefixer      ^8.6.2  →  ^9.2.0 
 css-loader      ^0.28.11  →  ^1.0.0 
 postcss-loader    ^2.1.5  →  ^3.0.0 
 webpack-cli       ^2.1.3  →  ^3.1.2 

The following dependencies are satisfied by their declared version range, 
but the installed versions are behind. You can install the latest versions 
without modifying your package file by using npm update. 
If you want to update the dependencies in your package file anyway, run ncu -a.

 underscore               ^1.9.0  →   ^1.9.1 
 mini-css-extract-plugin  ^0.4.0  →   ^0.4.4 
 node-sass                ^4.9.0  →   ^4.9.3 
 sass-loader              ^7.0.1  →   ^7.1.0 
 webpack                  ^4.8.3  →  ^4.20.2 

Run ncu with -u to upgrade package.json

これで問題なければ

nuc -u

でpackage.jsonを書き換え。

実際にパッケージのアップデートをするには

npm install

を実行する。

• tjunnone/npm-check-updates: Find newer versions of package dependencies than what your package.json or bower.json allows