App.vue
main.js
 
<template>
  <h1>v-model Example</h1>
  <p>Using the '.trim' modifier will remove any white spaces at the start and end of the input.</p>
  <p>Add white spaces at the start and end in the input fields below to see the difference with or with out '.trim'.</p>
  <p>No '.trim': <input type="text" v-model="inputVal1"> "<pre>{{ inputVal1 }}</pre>"</p> 
  <p>With '.trim': <input type="text" v-model.trim="inputVal2"> "<pre>{{ inputVal2 }}</pre>"</p>
  
</template>

<script>
export default {
  data() {
    return {
      inputVal1: 'Hello',
      inputVal2: 'Hi'
    };
  }
}
</script>

<style>
pre {
  display: inline;
  background-color: lightgreen;

}
</style>                  
import { createApp } from 'vue'

import App from './App.vue'

const app = createApp(App)
app.mount('#app')
                  
http://localhost:5173/