angular - Angular Material 设计中的电话号码模式验证

Question

我想使用 Angular Material 设计代码验证电话号码，但即使我输入有效的电话号码，下面的代码也无法正常工作，请有人帮助我

 <mat-form-field class="example-full-width">
                <input matInput placeholder="Phone number" formControlName="PhoneNumber"
                   [errorStateMatcher]="matcher" [(ngModel)]="PhoneNumber" required pattern="[6-9]\\d{9}" maxlength="10">
                     <mat-hint>Errors appear instantly!</mat-hint>
                     <mat-error *ngIf="emailForm.get('PhoneNumber').hasError('required')">
                       Phone number is <strong>required</strong>
                     </mat-error>
                      <mat-error *ngIf="!emailForm.get('PhoneNumber').hasError('required') &&emailForm.get('PhoneNumber').hasError('pattern')">
                      Please enter valid mumber
                     </mat-error>
          </mat-form-field>

    ngOnInit() {

    //Form Group
    this.emailForm = new FormGroup({
      PhoneNumber:new FormControl('',[Validators.pattern(/^[6-9]\d{9}$/)]),
    });
}

https://stackblitz.com/edit/angular-2m1vdq-7vzaq8?file=app%2Finput-error-state-matcher-example.html

Answer 1

你可以试试下面对我有用的正则表达式

/^[0-9]{10,10}$/