JSFiddle - React, Tailwind, and code Playground

by Chetan Hanumantha

HTML

<input type="text"> </input>
<br><br>
<textarea rows="4" cols="50" id="type_something" placeholder="Type something" autofocus >

</textarea>

JavaScript

$('#type_something').on('paste', function(event){
    var element = this;
    setTimeout(function () {
        var text = $(element).val();
        if(text.trim().length <= 0) {
            alert('Sorry, paste something else, not empty string');
            $(element).val('');
        }
    }, 100);
});

$('#type_something').on('blur', function(event){
    var element = this;
    var text = $(element).val();
    if(text.trim().length <= 0) {
        alert('Sorry, type something else, not blank characters');
        $(element).val('');
    }
});