Today, We want to share with you Confirm password validation in Angular 6|7|8|9.In this post we will show you password and confirm password validation in angular 7 reactive form, hear for password and confirm password validation in angular 8 we will give you demo and example for implement.In this post, we will learn about Custom Validator on reactive form for password and confirm password matching getting undefined parameters into Angular 6,7,8,9 with an example.

Confirm password validation in Angular 6|7|8|9

There are the Following The simple About Angular Validation Password and Confirm Password Full Information With Example and source code.

As I will cover this Post with live Working example to develop password and confirm password validation in angular 6 stackblitz, so the password and confirmpassword validation in angular using reactive forms is used for this example is following below.

Angular Validation Password and Confirm Password

src/app/app.component.html

    
Angular Validation Password and Confirm Password - pakainfo.com
       
    

           
        

            Password
            
            

                
Password is required.
            
        
  
        

            Confirm Password
            
            

                
Password is required.
                
Password and Confirm Password must be match.
            
        
        
        Submit
    

src/app/app.component.ts

import { Component } from '@angular/core';
import { FormBuilder, FormGroup, FormControl, Validators} from '@angular/forms';
  
import { ConfirmedValidator } from './confirmed.validator';
    
@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  form: FormGroup = new FormGroup({});
  
  constructor(private fb: FormBuilder) {
  
    this.form = fb.group({
      password: ['', [Validators.required]],
      double_check_pass: ['', [Validators.required]]
    }, { 
      validator: ConfirmedValidator('password', 'double_check_pass')
    })
  }
    
  get f(){
    return this.form.controls;
  }
   
  submit(){
    console.log(this.form.value);
  }
   
}

src/app/confirmed.validator.ts

import { FormGroup } from '@angular/forms';
    
export function ConfirmedValidator(controlName: string, matchingControlName: string){
    return (formGroup: FormGroup) => {
        const control = formGroup.controls[controlName];
        const matchingControl = formGroup.controls[matchingControlName];
        if (matchingControl.errors && !matchingControl.errors.confirmedValidator) {
            return;
        }
        if (control.value !== matchingControl.value) {
            matchingControl.setErrors({ confirmedValidator: true });
        } else {
            matchingControl.setErrors(null);
        }
    }
}

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