Issue with passing objects from FormBuilder

Question

As I'm trying to pass objects from formBuilder to another AbstractControl function of typescript file.

But not able to accomplish while passing data.

---

Stackblitz Here is the coding snippets

Main.component.ts

import { FormBuilder, Validators, FormGroup, FormControl } from '@angular/forms';
import { PasswordStrengthValidator } from './PasswordStrengthValidator';

let obj = {};
obj.passwordLength  = 12;
obj.lowercaseNo     = 3;
...

this.passwordForm = this.formBuilder.group({
    password: new FormControl('', Validators.compose([
      Validators.required,
      Validators.minLength(obj.passwordLength),
      Validators.maxLength(30),
      PasswordStrengthValidator
    ])),
  }, {
    validators: this.password.bind(this)
  });
}

PasswordStrengthValidator.ts

import { AbstractControl, ValidationErrors } from '@angular/forms';

export const PasswordStrengthValidator = function (control: AbstractControl): ValidationErrors | null {
    console.log(obj); // object values needs to be displayed here
    ...
}

Is it possible to achieve replacing the above code to the main component itself or are there any better way to get around this issue

Answer 1

You could use a factory:

<

export const PasswordStrengthValidatorFactory = (passObject: any) => {
  return function(control: AbstractControl): ValidationErrors | null {
    // In console required to display those values in the passObject
    console.log(passObject);

    return null;
  };
};

constructor(fb: FormBuilder) {
    console.log(this.passObject);
    this.myForms = fb.group({
      password: [null, Validators.compose([
        Validators.required, Validators.minLength(8), PasswordStrengthValidatorFactory(this.passObject)])]
    });

Link to stackblitz