alphanumeric with space regex
var regex = new RegExp("^[A-Za-z0-9? ,_-]+$");
var key = String.fromCharCode(event.charCode ? event.which : event.charCode);
if (!regex.test(key)) {
event.preventDefault();
return false;
}regular expression alphanumeric dash space c#
var regexp = /^[a-zA-Z0-9-_]+$/;
var check = "checkme";
if (check.search(regexp) === -1)
{ alert('invalid'); }
else
{ alert('valid'); }Copyright © 2021 Codeinu
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