updatepackage json code example

Example 1: upgrade all packages in package.json

npm install -g npm-check-updates
ncu -u
npm install

Example 2: npm update

npm install -g npm@latest

Example 3: update npm package

Use npm|yarn outdated to see which modules have newer versions
Use npm update|yarn upgrade (without a package name) to update all modules
Include --save-dev|--dev if you want to save the newer version numbers to your package.json. (NOTE: as of npm v5.0 this is only necessary for devDependencies).
Use npm install package@major-version to update to major version

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