Attempting to assign a default background image with the help of Angular.js

Recently delving into Angular.js, I've encountered an issue. Utilizing ng-repeat for iterating through a list of news items, each with Title and Body properties, some may also contain an optional picture URL to be used as the background.

I have managed to display news item elements with picture URLs appropriately when there is a valid URL available. Sample code snippet provided below:

<li class="news-item col-md-6" ng-repeat="announcement in news.announcements | limitTo:8" ng-style="{'background-image': 'url({{announcement.Url}})'}">

The challenge lies in setting announcement.Url value to a default background picture URL when it is NULL or Undefined. Seeking guidance on how to approach this scenario.

Your assistance would be greatly valued.

Many thanks!

javascriptangularjsangularjs-ng-repeat

Answer №1

<li class="news-item col-md-6" ng-repeat="announcement in news.announcements | limitTo:8" ng-style="{'background-image': 'url({{announcement.Url || \'path to default image\'}})'}">

When working with angular expressions, anything between {{ and }} should be considered. This is similar to javascript for beginners. By using the || operator (logical OR), you can define a default path for the image in case announcement.Url is null or undefined.

Edit: It's important to escape string delimiters (\') when they are nested inside a string that already uses those delimiters.

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