Question

我使用下面的帮助程序迭代JSON数组并根据条件返回结果，以查找帐户是否已关闭（OpenOrClosedDesc=='Closed'）。我收到了所有已关闭的帐户。但是现在我想在没有关闭帐户的情况下在屏幕上打印错误消息。

Handlebars.registerHelper('each_Closed', function(list, opts) {
                var i, result = '';
                try {
                    //console.log("List Closed length "+ list.length)
                    for (i = 0; i < list.length; i++)
                        if (list[i].OpenOrClosedDesc == 'Closed'){
                          //  console.log("List Closed  "+ list[i].OpenOrClosedDesc == 'Closed')
                            result = result + opts.fn(list[i]);
                        }
                return result;
            }catch(e){

            }
        });

HTML代码：

<div id = "Revolving_ClosedAcc">
   {{#repData}}
     {{#each_Closed arf.TradeLine.TradeLine.[Revolving Accounts]}}
    .
    .
    .
    .
    .
    {{/each_Closed}}
  {{/repData}}
</div>

编辑可能重复的说明：我试图从else分支返回错误消息，但它没有给出准确的结果。它只是显示如果发现其中一个帐户已关闭，则没有已关闭的帐户。它不会通过for循环。 for循环是主要路径，因为我想迭代整个对象数组。

编辑每个帐户的计数：

Handlebars.registerHelper('each_Closed', function(list, opts) {
                var i, result = '',resCounter=0,closedAccountFound = false;
                try {
                    //console.log("List Closed length "+ list.length)
                    for (i = 0; i < list.length; i++) {
                        if (list[i].OpenOrClosedDesc == 'Closed') {
                            // console.log("List Closed  "+ list[i].OpenOrClosedDesc == 'Closed')
                            result = result + opts.fn(list[i]);
                            resCounter++;
                            closedAccountFound = true;
                        }
                    }
                    console.log(resCounter);
                    return closedAccountFound ? result : "No close account found.";
                }catch(e){

                }
            });

我在console.log中得到了数（resCounter）但是我怎么能回归呢，换句话说我怎么能把它打印在车把里呢？我必须写另一个帮手吗？

我该怎么做？

提前致谢。

Answer 1

只需添加变量closedAccountFound = false并在找到任何已关闭的帐户时将其指定为true，然后在返回结果之前检查值closedAccountFound是否为真然后返回结果，否则返回消息。

Handlebars.registerHelper('each_Closed', function(list, opts) {
            var i, result = '', closedAccountFound = false;
            try {
                //console.log("List Closed length "+ list.length)
                for (i = 0; i < list.length; i++)
                    if (list[i].OpenOrClosedDesc == 'Closed'){
                      //  console.log("List Closed  "+ list[i].OpenOrClosedDesc == 'Closed')
                        result = result + opts.fn(list[i]);
                        closedAccountFound = true; 
                    }
            return closedAccountFound ? result : "No close account found.";
        }catch(e){

        }
    });

Handlebars.js每个助手都有if条件

1 个答案: