JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id="phone" maxlength="10" />

JavaScript

var phone = document.getElementById('phone'),
    cleanPhoneNumber;

cleanPhoneNumber= function(e) {
    e.preventDefault();
    var pastedText = '';
    if (window.clipboardData && window.clipboardData.getData) { // IE
        pastedText = window.clipboardData.getData('Text');
      } else if (e.clipboardData && e.clipboardData.getData) {
        pastedText = e.clipboardData.getData('text/plain');
      }
    this.value = pastedText.replace(/\D/g, '');
};

phone.onpaste = cleanPhoneNumber;