Handling Enter Key in Vue.js

Question

I'm learning Vue.js. In my Vue, I have a text field and a button. By default, this button submits a form when someone presses the Enter key on their keyboard. When someone is typing in the text field, I want to capture each key pressed. If the key is an '@' symbol, I want to do something special. If the key pressed is the "Enter" key, I want to do something special as well. The latter is the one giving me challenges. Currently, I have this Fiddle, which includes this code:

new Vue({
  el: '#myApp',
  data: {
    emailAddress: '',
    log: ''
  },
  methods: {
    validateEmailAddress: function(e) {
      if (e.keyCode === 13) {
        alert('Enter was pressed');
      } else if (e.keyCode === 50) {
        alert('@ was pressed');
      }      
      this.log += e.key;
    },

    postEmailAddress: function() {
      this.log += '\n\nPosting';
    }
});

In my example, I can't seem to press the "Enter" key without it submitting the form. Yet, I would expect the validateEmailAddress function to at least fire first so that I could capture it. But, that does not seem to be happening. What am I doing wrong?

Answer 1

In vue 2, You can catch enter event with v-on:keyup.enter check the documentation:

https://vuejs.org/v2/guide/events.html#Key-Modifiers

I leave a very simple example:

var vm = new Vue({
  el: '#app',
  data: {msg: ''},
  methods: {
    onEnter: function() {
       this.msg = 'on enter event';
    }
  }
});

<script src="https://cdn.jsdelivr.net/npm/vue"></script>

<div id="app">
  <input v-on:keyup.enter="onEnter" />
  <h1>{{ msg }}</h1>
</div>

Good luck