Form utils

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

type ControlChangeOptions = {
  onlySelf?: boolean;
  emitEvent?: boolean;
};

export class FormUtils {

  static readonly defaultOptions: ControlChangeOptions = {
    onlySelf: false,
    emitEvent: true,
  };

  /**
   * Updates every value of given control array
   */
  static patchControls<T>(
    controls: AbstractControl[],
    value: T,
    options = FormUtils.defaultOptions
  ): void {
    if (!Array.isArray(controls)) {
      return;
    }

    controls.forEach(control => control.patchValue(value, options));
  }

  /**
   * Disables each control in the array
   */
  static disableControls(
    controls: AbstractControl[],
    options = FormUtils.defaultOptions
  ): void {
    if (!Array.isArray(controls)) {
      return;
    }

    controls.forEach(control => control.disable(options));
  }

  /**
   * Enables each control in the array
   */
  static enableControls(
    controls: AbstractControl[],
    options = FormUtils.defaultOptions
  ): void {
    if (!Array.isArray(controls)) {
      return;
    }

    controls.forEach(control => control.enable(options));
  }

}