Best way to preload images with Angular.js

Question

Angular\'s ng-src keeps previous model until it preloads image internally. I am using different image for the banner on each page, when I switch routes, i change main view,

Answer 1

A simple solution I've found is to change the url to '//:0' before assigning it's new value

$scope.bannerUrl = 'initial value'; 

// When we want to change it
$scope.bannerUrl = '//:0';  // remove the previous img so it's not visible while the new one loads
$scope.bannerUrl = scope.preloadedUrl