Knockout.js foreach:但仅当比较为真时 [英] Knockout.js foreach: but only when comparison is true

问题描述

如何通过比较来控制foreach忽略某些元素?

How can I control the foreach to ignore certain elements by using a comparison?

例如，我想要的是这样的东西:

What I want for example is something like this:

<div data-bind="foreach: entry where (entry.number > 10)">

所以我想做的是遍历entry，但仅在当前entry的number值大于10时执行.

So what I would want it to do is loop through entry's but only execute when that current entry has a number value of more than 10.

这可能吗?

推荐答案

knockout.js目前无法实现，但这是一个有趣的功能.您应该提交错误报告/与作者联系以考虑将其用于将来的版本.

Currently that's not possible with knockout.js, but it's an interesting feature. You should file a bug report/contact the author to consider it for a future version.

方法1:

<div data-bind="foreach: entry">
     <div data-bind="if: entry.number > 10"></div>
</div>

方法2:
编写一个自定义过滤器方法，该方法将为您提供符合条件的元素数组，并在您的foreach中使用它.

Way 2:
Write a custom filter method that gives you an array of elements that match your conditions and use this in your foreach.

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