JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text">

JavaScript

$('input').change(function(){
    var temp = $(this).val();
    var searchTerm = 'text';
    if(temp.search('text') > 0 || temp.search(searchTerm) == 0){
        $(this).attr('disabled', 'disabled');
    }
});