How to handle forms and form validation in Vue.js?

You can use v-model for form input bindings and handle form submission with methods:

<form @submit.prevent="submitForm">
  <input v-model="formData.username" required>
  <input v-model="formData.password" type="password" required>
  <button type="submit">Submit</button>
</form>

data: {
  formData: {
    username: '',
    password: ''
  }
},
methods: {
  submitForm: function() {
    // Form submission logic
  }
}