update angular

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

      
        content_copy
      
      ng update @angular/cli @angular/core
    

First, update to the latest version of 8
ng update @angular/cli@8 @angular/core@8

Then, update to 9
ng update @angular/cli @angular/core

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

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

npm update @angular/material @angular/cdk