Vue.js v-on:keyup Directive

Last Updated : 08 Jul, 2020

The v-on:keyup directive is a Vue.js directive used to add an event listener to an button in the keyboard. First, we will create a div element with id as app and let’s apply the v-on:keyup directive to the input element. Further, we can execute a function when we press the associated key.

Syntax:

v-on:keyup="function"

Supported Keys: Following keys are supported:

Enter key: .enter
Tab key: .tab
Delete key: .delete
Esc key: .esc
Up key: .up
Down key: .down
Left key: .left
Right key: .right

Parameters: This directive holds function as a value that will be executed when the key event occurs.
Example: This example uses VueJS to toggle the visibility of a element with v-on:keyup using Enter key.

HTML

<!DOCTYPE html> 
<html> 
  
<head> 
    <title> 
        VueJS v-on:keyup Directive 
    </title> 
  
    <!-- Load Vuejs -->
    <script src= 
"https://cdn.jsdelivr.net/npm/vue/dist/vue.js"> 
    </script> 
</head> 
  
<body> 
    <div style="text-align: center; 
                width: 600px;"> 
        <h1 style="color: green;"> 
            GeeksforGeeks 
        </h1> 
        <b> 
            VueJS | v-on:keyup directive 
        </b> 
    </div> 
  
    <div id="canvas" style= 
            "border:1px solid #000000; 
            width: 600px;height: 200px;"> 
  
        <div id="app" style= 
            "text-align: center;  
            padding-top: 40px;"> 
            Write anything and press enter 
  
            <input v-on:keyup.enter= 
                "data = !data"> 
            </input> 
              
            <h1 v-if="data">GeeksforGeeks</h1> 
        </div> 
    </div> 
  
    <script> 
        var app = new Vue({ 
            el: '#app', 
            data: { 
                data: false 
            } 
        }) 
    </script> 
</body> 
  
</html>                    