did you found a other validations?
no actually i follow these validation with email and username input but i dont know how to do it with checkboxes input
i am here also looking full validation tutorial for every form control because i have to face all kind of things in my project 
yeah same here 
hope we can find some help
@safa2jwd let me show what i got for you bro 
<input type="checkbox" formControlName="isTosRead">
In your ts file you can set
isTosRead: new FormControl(false, [Validators.requiredTrue]) this will help to validate your checkbox.
Or just look at this example https://stackblitz.com/edit/angular-gitter-aemvds?file=app%2Fapp.component.ts
I thinking you are know about reactive form concept in Angular or send me a message i will share my full code which i used so far
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thanks a lot 
i will try your solution yes i know a little about rractive form in angular ^^
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