npm update all packages code example

Example 1: update npm

npm install -g npm@latest

Example 2: use npm to update packages to latest version

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

Example 3: upgrade all packages in package.json

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

Example 4: how to update my package.json

npm install -g npm-check-updates
/after install run following:
ncu -u

//Then this:
npm update

Example 5: npm update all

npm update --save

Example 6: how to update dev dependencies npm

npm update --save-dev

// Alternatively, the same command to save time
npm update -D