update npm packages to latest code example

Example 1: use npm to update packages to latest version

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

Example 2: npm update

npm install -g npm@latest

Example 3: how to update my package.json

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

//Then this:
npm update

Example 4: npm update all

npm update --save

Example 5: npm get latest version of package

npm show {pkg} version

Example 6: npm update to latest

npm i -g npm@latest