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>