jsdk-offical/examples/store/imagecache.js

JSDK is the most comprehensive TypeScript framework, like JDK.

JS.imports('$jsds').then(() => {
    let cache = new ImageCache();
    cache.load([
        {
            id: '1',
            url: '../jsfx/carousel/greatwall.jpg'
        }
    ]).then(() => {
        $1('#img1').src = cache.get('1').src;
    });
});