Question

I am trying to match when there is a value with parenthesise.

var onsuccess = "aaa;bbb(ccc)";
onsuccess.split(';').forEach(function (success) {
                var re = new RegExp("\(.*?\)");
                document.write(success + ": " + success.match(re) + "<br>");
        });​

Output is

aaa: ,
bbb(ccc): ,

Expected is

aaa: false
bbb(ccc): true

Where am I going wrong? I have been using this page as an example:
http://www.regular-expressions.info/javascriptexample.html

Here is my fiddle: http://jsfiddle.net/valamas/8B5zw/

thanks

Answer 1

var onsuccess = "aaa;bbb(ccc)";
onsuccess.split(';').forEach(function (success) {
   var re = /\(.*?\)/;
   document.write(success + ": " + re.test(success) + "<br>");
});

The working demo.

Note: if you using new RegExp(...), you need to escape your backslash.

You regex should be var re = new RegExp("\\(.*?\\)");, but since there is no variable in your regex, you should just use the regex literal instead.
​