how to upgrade angular clo code example

Example 1: ng update @angular/core @angular/cli

npm uninstall -g angular-cli
npm install -g @angular/cli@latest

Example 2: update angular to specific version

ng update @angular/[email protected] @angular/[email protected]

Example 3: ng update @angular/core @angular/cli

rm -rf node_modules
npm uninstall --save-dev angular-cli
npm install --save-dev @angular/cli@latest
npm install