Not Moving the cursor after replace the values in textboxes.

i created jsfiddle solution for your question, please check it

http://jsfiddle.net/o2gxgz9r/3912/

$(document).ready(function() {

$('input, textarea').on('keyup', function (event) {

var txtdata = event.target.value;

var arr = [ "/*", "*/", "--", "//" ];

if (event.target.value != '') {

jQuery.each( arr, function( i, val ) {

if (txtdata.indexOf(val) >= 0){

event.target.value = txtdata.replace(val, '');

}

});

}

});//keyup

});//ready

if it help you out, please accept the ans !!!

regards,

Rupali Shinde