从 FormBuilder 传递对象的问题

Question

因为我试图将对象从 formBuilder 传递到打字稿文件的另一个 AbstractControl 函数。

但是传数据的时候无法完成

---

Stackblitz 这是编码片段

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
    ...
}

是否可以将上述代码替换为主要组件本身，或者是否有更好的方法来解决这个问题

Answer 1

您可以使用工厂：

<

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