angular form validation code example

Example 1: angularjs form validation on submit

  
 Angular.js - Web Form

  

    

      First name
      
    

    

      Last Name
      
    

    

      Email address
      
    

    

      
         Check me out
      
    


    Submit

  

Example 2: angularjs show form validation errors

  
 {{ key }} errors
    

      
{{ e.$name }} has an error: {{ key }}.
    
  

Example 3: validation minlength angular

Validators.minLength(9)

Example 4: formgroup check if valid

form: FormGroup;

onSubmit(){
    //checks if form is valid
       if( this.form.valid){
          //more code here
        }
}

Example 5: angular9+how+to+add+validators

this.form.controls["firstName"].setValidators([Validators.minLength(1), Validators.maxLength(30)]);