JAVASCRIPT

update angular cli globally

npm update @angular/cli -g

update angular cli

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

update angular cli

For updating angular cli type this command :
ng update @angular/cli @angular/core   

update angular/cli

content_copy
ng update @angular/cli @angular/core

angular cli upgrade

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