Avoid inputting numbers and special characters

In my coding work, I have crafted a function that detects the key pressed by the user through an event.

NameValidation(e){

    if(!e.key.match(/^[a-zA-Z]*$/))
    {
        e.key = '';
        console.log(e.key);
    }
},

This function essentially verifies whether a special character or number has been entered by the user and if so, it replaces the special character/number with an empty string.

The problem arises when it comes to e.key = '';.

Despite this line of code being present, the captured key is not actually replaced. What am I overlooking here?

javascriptvue.jsdom-events

Answer №1

Realizing that the Keypress event was causing a delay in processing the trigger, I switched to using keydown and then implemented preventDefault to manipulate default event behavior.

This article provided me with valuable insight: How can I prevent numeric inputs using VueJS

Here's my solution:

JavaScript:

NameValidation(e){

if(!e.key.match(/^[a-zA-Z]*$/))
{
    e.preventDefault();
}

},

HTML:

<input v-model.trim="firstname_txt" v-on:keydown="NameValidation($event)">

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