如何让孩子纳克重复内的父范围阵列/ NG重复的索引 [英] How to get the index of an parent scope array/ng-repeat inside child ng-repeat

问题描述

我建立一个表，我有两个 NG-重复我的表。

I am building a table and I have two ng-repeat for my table.

我的问题是，如果有可能的的子NG重复可以得到父 NG-重复索引中。例如：

My question is if it's possible the child of the ng-repeat can get the parent ng-repeat's index. For example:

<tbody>
    <tr ng-repeat="company in companies">
        <td ng-repeat="product in company">
            company # = {{the company index}} and product {{$index}}
        </td>
    </tr>
</tbody>

我不知道如何将TD NG-重复下添加公司指数。有没有办法做到这一点？非常感谢！

I am not sure how to add the company index under the td ng-repeat. Is there a way to do this? Thanks a lot!

推荐答案

这也正是 NG-INIT 进入画面，别名NG重复，恩的特殊属性： NG-的init =companyIdx = $指数。因此，通过公司独创每个子范围 NG-重复都会有这样的 companyIdx 属性。

This is exactly where ng-init comes into picture, to alias special properties of ng-repeat, ex: ng-init="companyIdx=$index". So each child scope created by company ng-repeat will have this companyIdx property.

<tbody>
    <tr ng-repeat="company in companies" ng-init="companyIdx=$index">
        <td ng-repeat="product in company">
            company # = {{companyIdx}} and product {{$index}}
        </td>
    </tr>
</tbody>

使用 $父是好的，但你必须在它们之间创建一个子范围的其他任何指令，例如： - NG-如果，另一个 NG-重复等等。你必须去疯狂做 $母公司。母公司$ .... 。与 NG-INIT 走样使得清洁，更具可读性和可维护性以及

Using a $parent is fine but it you have any other directive that creates a child scope in between them, eg:- ng-if, another ng-repeat etc.. you will have to go crazy doing $parent.$parent..... Aliasing with ng-init makes it clean and more readable and maintainable as well.

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