在Yahoo!管道如何从使用每个项目的值构建的循环中返回单个值? [英] In Yahoo! Pipes how can I return a single value from a loop that's built with values from every item?

问题描述

例如，我有一个项目列表，每个项目都有一个名称.我想构建一个包含所有名称的逗号分隔列表的单个字符串.在大多数编程语言中，我将遍历所有项并追加到列表/数组之外的值.但是，我不知道雅虎的任何组合！管道模块来做到这一点.也许我缺少明显的东西，但我也没有从Google找到任何相关信息.

For example, I have a list of items and each item has a name. I want to build a single string that contains a comma-separated list of all the names. In most programming languages, I would loop over the items and append to a value outside the list/array. But, I can't figure out any combination of Yahoo! Pipes modules to do it. Maybe I'm missing something obvious, but I also find nothing relevant from Google.

如何在循环外将循环项值附加到单个值?

How do I append loop item values to a single value outside the loop?

或者如何从使用每个项目的值构建的循环中返回单个值?

Or how can I return a single value from a loop that's built with values from every item?

或者两者都不是，在Pipes中完成此操作的正确方法是什么?

Or what is the correct method to accomplish this in Pipes if it's neither of those?

推荐答案

基于Yahoo!的帮助，我想出了最好的方法.组，是使用项目生成器(item.string =默认值)->循环(将所有内容分配给item.string).在Loop中使用另一个管道来提供要连接的值也很有帮助.

The best method I've come up with based on help from the Yahoo! group, is to use an Item Builder (item.string = default) --> Loop ( assign all to item.string ). Using another pipe inside the Loop to provide the values to concatenate was also very helpful.

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