Angular.js ng-repeat across multiple elements

2019-01-08 07:51发布

站内问答 / JavaScript
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This question has been partly addressed here: Angular.js ng-repeat across multiple tr's

However that is just a work-around really, it doesn't actually address the core issue, which is: how can one use ng-repeat across multiple elements without a wrapper?

For example, jquery.accordion requires you to repeat an h3 and div element, how could one do this with ng-repeat?

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2楼-- · 2019-01-08 08:24

UPDATE: This answer is outdated. Please see @IgorMinar answer and use standard ng-repeat-start and ng-repeat-end directives.

There are two options:

First option is to create directive that will render several tags and replace source tag (jsfiddle)

<div multi ></div>

angular.module('components').directive('multi', function ($compile) {
return {
    restrict: 'A',
    scope : {
       first : '=',
       last : '=',
    },        
    terminal:true,

    link: function (scope, element, attrs) {
       var tmpl = '', arr = [0,1,2,3]

       // this is instead of your repeater
       for (var i in arr) {
          tmpl +='<div>another div</div>'
       }

       var newElement = angular.element(tmpl);
       $compile(newElement)(scope);
       element.replaceWith(newElement); 
    }
})

Second option is to use updated source code of angular that enables comment style ngRepeat directive (plnkr)

<body ng-controller="MainCtrl">
 <div ng-init="arr=[0,1,2]" ></div>
   <!-- directive: ng-repeat i in arr -->
     <div>{{i}}</div>
     <div>{{ 'foo' }}</div>  
   <!-- /ng-repeat -->

   {{ arr }}

  <div ng-click="arr.push(arr.length)">add</div>
</body>

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Emotional °昔
3楼-- · 2019-01-08 08:35

We now have a proper support for this, please see:

AngularJs Commmit

with this change you can now do:

<table>
  <tr ng-repeat-start="item in list">
      <td>I get repeated</td>
  </tr>
  <tr ng-repeat-end>
      <td>I also get repeated</td>
  </tr>
</table>
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Emotional °昔
4楼-- · 2019-01-08 08:45

To answer Andre's question above on more than 2 levels of ng-repeat in a table, you can use multiple ng-repeat-start to accomplish this.

<tr ng-repeat-start="items in list">
   <td>{{items.title}}</td>
</tr>
<tr ng-repeat-start="item in items">
   <td>{{item.subtitle}}</td>
</tr>
<tr ng-repeat-end ng-repeat="value in item.values">
   <td>{{value.col1}}</td>
   <td>{{value.col2}}</td>
</tr>
<tr ng-repeat-end></tr>

Here is a plunker example

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