vue button bind to v-model code example

Example 1: radio button vue

<input type="radio" id="one" value="One" v-model="picked">
<label for="one">One</label>
<br>
<input type="radio" id="two" value="Two" v-model="picked">
<label for="two">Two</label>
<br>
<span>Picked: {{ picked }}</span>

Example 2: what does v-model do in vue

Although a bit magical, v-model is essentially syntax sugar for updating 
data on user input events, plus special care for some edge cases.