handlebars Helper用法

var d = {
        user_name: data.user_name,
        credentials_number: data.credentials_number,
        credentials_type: credentialsType2,
        user_address: data.user_address,
        user_birth_str: data.user_birth_str,
        user_gender: data.user_gender,
       };
 var tp = Handlebars.compile($("#user_tpl").html());
   Handlebars.registerHelper("compare",function(v1,v2,options){
    if(v1==v2)
    {
         //满足添加继续执行
          return options.fn(this);
     }
     else
     {
           //不满足条件执行else部分
           return options.inverse(this);
     }
  });
  Handlebars.registerHelper("transformat",function(value){
 if(value==1)
 {
      return "男";
 }
 else if(value==2)
 {
       return "女";
  }
  else
  {
       return "未设置";
  }
});
 $("#user_content").html(tp(d));

{{#compare user_gender 1}}
                <span>男</span><input name="user_gender" id="user_gender" value="1"  checked="checked" type="radio">
                {{else}}
                <span>男</span><input name="user_gender" id="user_gender" value="1" type="radio">
                {{/compare}}

                {{#compare user_gender 2}}
                <span>女</span><input name="user_gender" id="user_gender" value="2"  checked="checked" type="radio">
                {{else}}
                <span>女</span><input name="user_gender" id="user_gender" value="2" type="radio">
                {{/compare}}