Answers for "*ngif condition in angular"

angular ngif

<label *ngIf="1==1" > show Label when condition is true </label>

ngif

<div *ngIf="condition; else elseBlock">
         
<button class="xx" *ngIf="flag" (click)="doFunct()">Next</button>
   
--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

ng elseif

<ng-container *ngIf="tipo_template === 0">
     <!-- Conteúdo 0 aqui -->
</ng-container>

<ng-container *ngIf="tipo_template === 1">
     <!-- Conteúdo 1 aqui -->
</ng-container>

<ng-container *ngIf="tipo_template === 2">
     <!-- Conteúdo 2 aqui -->
</ng-container>