JSFiddle - React, Tailwind, and code Playground

by shailparas

HTML

<input type="text" id="tag1">

JavaScript

$(function(){   
    $("#tag1").on('keyup',function(){
        specialcheck();
    });
});

function specialcheck(){
    var strGivenString = $('#tag1').val();
   
    
    if (/^[a-zA-Z0-9-]*$/.test(strGivenString) == false)
    {
   //alert('Entered String Contains special Characters!');
        //var newStr = strGivenString.substring(0, strGivenString.length-1);
        var newStr = strGivenString.replace(/[^a-zA-Z0-9 ,]/g, "");
        $("#tag1").val(newStr);
    }

}