JSFiddle - React, Tailwind, and code Playground

HTML

<b>Name</b>
<input type="text" id="name" />

JavaScript

$('#name').bind('paste', function(){
    var self = this;
    setTimeout(function() {
        if(!/^[a-zA-Z]+$/.test($(self).val()))
            $(self).val('');
    }, 0);    
});