Utilizing the @keypress event handler in VueJS

I am attempting to incorporate the onkeypress event within a Vue component. My goal is to allow only numbers on keypress while disallowing all other key codes. Here is what I have tried:

Implementing the onkeypress event works perfectly!

<input type="number" onkeypress="return (event.charCode === 0 || /\d/.test(String.fromCharCode(event.charCode)));" />

However, when I attempt to convert this to be used in Vue, it fails to work!!! :(

<input type="number" @keypress="restrictChars($event)" />

<script>
    export default {
    name: 'quantity-selector',
    methods: {
        restrictChars: function($event) {
            return ($event.charCode === 0 || /\d/.test(String.fromCharCode($event.charCode)));
        }
    }

What could I possibly be overlooking?? I am struggling to comprehend where the issue lies. Any assistance would be greatly appreciated!

Answer №1

After some investigation, I have identified the issue. Despite returning a boolean value while reading the key codes, I neglected to suppress the default keypress action. To rectify this, the restrictChars function should be revised as shown below:

restrictChars: function($event) {
    if ($event.charCode === 0 || /\d/.test(String.fromCharCode($event.charCode))) {
        return true
    } else {
        $event.preventDefault();
    }
}

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