AngularJS ng-repeat handle empty list case

Question

I thought this would be a very common thing, but I couldn't find how to handle it in AngularJS. Let's say I have a list of events and want to output them with AngularJS, then that's pretty easy:

<ul>
    <li ng-repeat="event in events">{{event.title}}</li>
</ul>

But how do I handle the case when the list is empty? I want to have a message box in place where the list is with something like "No events" or similar. The only thing that would come close is the ng-switch with events.length (how do I check if empty when an object and not an array?), but is that really the only option I have?

Answer 1

You might want to check out the angular-ui directive ui-if if you just want to remove the ul from the DOM when the list is empty:

<ul ui-if="!!events.length">
    <li ng-repeat="event in events">{{event.title}}</li>
</ul>

Answer 2

<ul>
    <li ng-repeat="item in items | filter:keyword as filteredItems">
        ...
    </li>
    <li ng-if="filteredItems.length===0">
        No items found
    </li>
</ul>

This is similar to @Konrad 'ktoso' Malawski but slightly easier to remember.

Tested with Angular 1.4

Answer 3

You can use this ng-switch:

<div ng-app ng-controller="friendsCtrl">
  <label>Search: </label><input ng-model="searchText" type="text">
  <div ng-init="filtered = (friends | filter:searchText)">
  <h3>'Found '{{(friends | filter:searchText).length}} friends</h3>
  <div ng-switch="(friends | filter:searchText).length">
    <span class="ng-empty" ng-switch-when="0">No friends</span>
    <table ng-switch-default>
      <thead>  
        <tr>
          <th>Name</th>
          <th>Phone</th>
        </tr>
      </thead>
      <tbody>
      <tr ng-repeat="friend in friends | filter:searchText">
        <td>{{friend.name}}</td>
        <td>{{friend.phone}}</td>
      </tr>
    </tbody>
  </table>
</div>

Answer 4

you can use ng-if because this is not render in html page and you dont see your html tag in inspect...

<ul ng-repeat="item in items" ng-if="items.length > 0">
    <li>{{item}}<li>
</ul>
<div class="alert alert-info">there is no items!</div>

Answer 5

You can use ngShow.

<li ng-show="!events.length">No events</li>

See example.

Or you can use ngHide

<li ng-hide="events.length">No events</li>

See example.

For object you can test Object.keys.

Answer 6

And if you want to use this with a filtered list here's a neat trick:

<ul>
    <li ng-repeat="item in filteredItems  = (items | filter:keyword)">
        ...
    </li>
</ul>
<div ng-hide="filteredItems.length">No items found</div>