I have problem as below:
var test = $("#k_w").val().search("sinh("+parseFloat(sinh_array[i]));
The debugger shows an error: Uncaught SyntaxError: Invalid regular expression: /sinh(2/: Unterminated group.
sinh_array[i] are numbers.
What's wrong?
I have problem as below:
var test = $("#k_w").val().search("sinh("+parseFloat(sinh_array[i]));
The debugger shows an error: Uncaught SyntaxError: Invalid regular expression: /sinh(2/: Unterminated group.
sinh_array[i] are numbers.
What's wrong?
Share Improve this question edited Mar 18, 2012 at 21:14 Rob W 349k87 gold badges807 silver badges682 bronze badges asked Mar 18, 2012 at 13:09 Marcin KostrzewaMarcin Kostrzewa 5954 gold badges11 silver badges24 bronze badges3 Answers
Reset to default 6The String.search method converts the first argument to a Regular expression.
You are looking for the String.indexOf method, which search for a string, without a conversion to a RegExp.
var test = $("#k_w").val().indexOf("sinh("+parseFloat(sinh_array[i]));
// ^^^^^^^ indexOf
You have an opening parenthesis in your regex, but no closing parenthesis.
I think what you really want is this:
var test = $("#k_w").val().search("sinh\\("+parseFloat(sinh_array[i]) + "\\)");
I suspect you want to match the actual parens, and not create a group.
You have to escape parentheses in regexps; otherwise they begin a match group and thus have to be closed again.
var test = $("#k_w").val().search("sinh\\("+parseFloat(sinh_array[i]));