ngif and else in angular 9 code example

Example 1: ngif else

  Welcome back, friend.



  Please friend, login.

Example 2: ngif else

  

    Welcome back, friend.
  


  

    Please friend, login.
  

Example 3: ngif

         
Next
   
--While (t/f boolean variable called "flag") is true
  This button will be visible + click button executes function
  Once this "flag" becomes false this button disapears