jsdk-offical/examples/jsan/tween_init.js

JSDK is the most comprehensive TypeScript framework, like JDK.

JS.imports('$jsan').then(() => {
    let anim = new TweenAnim({
        keys: {
            translateX: 250
        },
        duration: 1000,
        delay: 500,
        endDelay: 500,
        direction: 'alternate',
        loop: true,
        autoreset: true,
        easing: 'BACK_IN_OUT'
    }).targets($L('.el'));
    $1('#demo').on('click', () => {
        anim.play();
    });
});