使用JavaScript在另一个字符串的多个位置插入字符串

Question

我有2个vars，需要将b插入到evry“}”之后，并且需要任何css类。我怎么能用jquery或javascript做到这一点？

var a        = "p{font-size:20px}
                .tihais {font-weight:bold}";
var b        = "#afnay";
var position = after evry "}";

THX

Answer 1

var a        = "p{font-size:20px}
            .tihais {font-weight:bold}";
var b        = "}#afnay"; // This variable value is changed!
a= a.replace("}", b);

Answer 2

＆＃13;

＆＃13;

var a = 'p{font-size:20px}\n'+
'.tihais {font-weight:bold}';
var b = "}#afnay";    
a= a.replace(/}/g, b);
console.log(a)

＆＃13;

＆＃13;

＆＃13;