Extended JS Format function and Comment tree

1. js Format function <script>        /*         1.  when calling an object method, you can extend the         2.  by invoking the method in the prototype of the class. Regular Expressions  /\w+/g        3.  string replace                  ". Replace (' Alex ', ' SB ');                  ". Replace (/\w+/, ' SB ');                  ". Replace (/\w +/g, ' SB ');                 '. Replace (/(\w+)/g,function (K,KK) {return 11;});         */         String.prototype.format = function (ARG) {&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBsp;    /*            this, Current string    "I am {name1}, age is {age9}"               arg,format method passed in parameter  {name: ' Alex ',age:18}              return, the new content obtained after formatting  i am alex, age  is 18            */             var temp = this.replace (/\{(\w+) \}/g, function (K,KK) {                 return arg[kk];            });             return temp;         };

2, using the above formatting function and recursive implementation of the comment tree

Function commenttree (commentlist) {             var comment_str =  "<div class= ' comment ' >";             $.each (Commentlist,function (k,row) {                 // var temp =  "<div  class= ' content ' > ' + row.content + ' </div> ';                 var temp =  "<div class= ' content ' >{ Content}</div> ". Format ({content:row.content});                 comment_str += temp;                 if (row.child.length>0) {                     comment_str += commenttree ( Row.child);                 }             });             comment_str +=  ' </div> ';             return comment_str;         }

Extended JS Format function and Comment tree