js截取数字.用正则取.怎么才能做到啊

[spirithappy2]

L [+$12.00]
XL [+$11.00]
Black [+$1.00]

如何取 里面的数字.包括.00的.

[王集鹄]

/\d+(\.\d+)?/

[Objector]

var str = 'XL [+$11.00]';
/\[\+\$(.*)\]/.exec(str);
alert(RegExp.$1);

[chen_xiangguo]

function subFloat(data){
                var pattern = /\d+(\.\d*)?/gm;
                var arr = [];
                var result = data.match(pattern);
                if (result != null && result.length != 0) {
                    for (var i = 0; i < result.length; i++) {
                        arr.push(result[i]);
                    }
                }
				return arr;
			}

[zhangshaolongjj]

var str="L [+$12.00]";
var reg = /\d+\.*\d*/g;
var a=[];
str.replace(reg,function($){a.push($);});
alert(a);