alphanumeric with space regex
var regex = new RegExp("^[A-Za-z0-9? ,_-]+$");
var key = String.fromCharCode(event.charCode ? event.which : event.charCode);
if (!regex.test(key)) {
event.preventDefault();
return false;
}regex remove all non alphanumeric except spaces
/[^[:alnum:]\x20/giCopyright © 2021 Codeinu
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