Regex for special characters

Im trying to find out if a textbox for a password contains a special character, so written the following code:-

$("#txtPassword").on("keyup", function () {
	if ($("#txtPassword").val().match(/(.*[!,%,&,@,#,$,^,*,?,{,},|,(,),[,],_,-,/,\])/)) {
  	$("#tdContainsSymbol").html("P");
  } else {
  	$("#tdContainsSymbol").html("O");
  }
});

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However its saying there is an issue with the regex command, Im assuming its to do with escape characters so changed the characters like []|\ and put a \ as an escape character, but didnt work.

Any ideas?