javascript - Angular - 模板驱动的表单 - 电子邮件验证未发生

Question

我正在制作一个简单的模板驱动表单，其中包含“电子邮件验证”(不是通过响应式表单)。因此，required、minlength、maxlength 工作正常。但是，当我尝试使电子邮件有效时，它失败了。有人可以帮我吗？

abc.component.html

  <form #customForm="ngForm" (ngSubmit)="alpha(customForm)">

    <input type="text" name="firstName" ngModel #firstName ="ngModel" required minlength="3" maxlength="10"><br/>

    <div *ngIf="firstName.touched">
      <p *ngIf="firstName.errors?.required">First Name is Required!!!</p>
      <p *ngIf="firstName.errors?.minlength">First Name minimum 3 characters are required!!!</p>
      <p *ngIf="firstName.errors?.maxlength">First Name max length is 10!!!</p>
    </div>

    <input type="email" name="email" ngModel #email="ngModel" required><br/>

    <div *ngIf="email.touched">
      <p *ngIf="email.errors?.required">Email is a required field!</p>
      <p *ngIf="email.errors?.email">This is not a valid Email!!!</p>
    </div>

    <button type="submit" [disabled]="customForm.invalid">Submit</button>

  </form>

Note: Though required validation of email is taking place, but as the pattern or data entered is not correct, the 2nd validation in email validation div must give error.

结果: (电子邮件有效且其模式不会自动给出错误)

Answer 1

您可以添加 email归因于您的电子邮件输入。但是，这不会使它对 xxx@xxx 模式的某些东西无效。在您的情况下，我认为这不是有效的电子邮件。

我建议你使用 pattern="[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,4}$"反而。然后，在您显示错误消息的地方，您应该检查 email.errors?.pattern反而。

试试这个:

<input 
  type="email" 
  name="email" 
  ngModel 
  #email="ngModel" 
  pattern="[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,4}$" 
  required>
<br/>

<div *ngIf="email.touched">
  <p *ngIf="email.errors?.required">Email is a required field!</p>
  <p *ngIf="email.errors?.pattern">This is not a valid Email!!!</p>
</div>

尝试这两种方法Sample StackBlitz并使用更适合您的那个。