angularjs如何递增NG重复初始化变量的值没有的onclick？ [英] angularjs how to increment init variable value in ng-repeat without onclick?

问题描述

如何在NG-重复增量初始化变量值

How to increment init variable value in ng-repeat

   <div ng-if="feedData.carouselMode == true" ng-init='start=0'  ng-repeat="a in carousel_data">

            <div  class="owl-demo" class="owl-carousel"   owl-carousel >
            <div class="item"  ng-repeat="(key, item) in a.carouselFeeds" ng-init="start=start+1">
                {{start}}
                <div ng-click="go('{{key}}', item.feedUrls.length, 'rtl')" ng-swipe-left="go('{{key}}', item.feedUrls.length, 'rtl')">
            <img class="lazyOwl"  ng-src="{{item.img}}"  />  
            <span class="innersquare" image-ja="{{item.img}}"> 
                <p ng-style="folderStyle">{{item.name  }}&nbsp;</p> </span>
                 </div> 
            </div>
        </div>
    </div>

NG-INIT增量开始后启动= 0 = +开始在NG-1的重复，但没有计数只显示1。

ng-init start=0 after increment start=start+1 in ng-repeat but no count only show 1.

推荐答案

这是因为每个 NG-重复都有自己的范围，每个纳克-init 只会增加自己范围的变量。你可以尝试用 $父。

This is because each ng-repeat has its own scope and each ng-init will just increase its own scoped variable. You can try access the parent scope with $parent.

如果你正在寻找一个连续记数试试这个

In case you are looking for a continuous numeration try this

<div ng-controller="MyCtrl">
<div ng-repeat="a in ['a','b','c']" ng-init="current = $parent.start; $parent.start=$parent.start+3;">
        <div ng-repeat="x in ['alpha','beta','gamma']">
            {{current + $index}}
    </div>
</div>

凡 +3 应 + [长度INNER阵列] 。

http://jsfiddle.net/rvgvs2jt/2/

有关特定code那么它看起来像这样

For your specific code it would look like this

<div ng-if="feedData.carouselMode == true" ng-init='current=$parent.start; $parent.start=$parent.start+a.carouselFeeds.length' ng-repeat="a in carousel_data">
    <div class="owl-demo" class="owl-carousel" owl-carousel>
        <div class="item" ng-repeat="(key, item) in a.carouselFeeds">
            {{current + $index}}
            <div ng-click="go('{{key}}', item.feedUrls.length, 'rtl')" ng-swipe-left="go('{{key}}', item.feedUrls.length, 'rtl')">
                <img class="lazyOwl" ng-src="{{item.img}}" />
                <span class="innersquare" image-ja="{{item.img}}"> 
                <p ng-style="folderStyle">{{item.name  }}&nbsp;</p> </span>
            </div>
        </div>
    </div>
</div>

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