How to validate input text fields like phone number, numeric fields and email validation using typescript in ionic 3?

Question

I'm trying develop an ionic 3 android application. Now i need to validate input fields using typescript only not javascript.

Answer 1

Check out these links:

• MDN - Input
• HTML5 Form Validation Example
• Angular Guide:Form Validation
• Angular Validators API

input:required:invalid, input:focus:invalid {
 background:red;
}

<input type="email" name="email" required placeholder="Enter a valid email address">