Mock of Animation object

1.js

const object = {
    anim: {
        effects: [
            pulse: {
                start: {
                    scaleX: object.scaleX * 1.25,
                    scaleY: object.scaleY * 1.25,
                },
                end: {
                    scaleX: object.scaleX,
                    scaleY: object.scaleY,
                },
                delay: 0, // wait this long before animating
                duration: 2500, // a single effect run last this long
                hangtime: 1000, // let end (or start) state hang this long between iteration (if any)
                iterations: 5, // how many times will the animation run.
                direction: 'alternate', // "normal, reverse, alternate". Alternate = Play the animation forwards first, then backwards:
                easing: 'easeInOutExpo', 
            },
            fadeIn: {
                start: {
                    opacity: 0,
                },
                end: {
                    opacity: object.opacity,
                },
                delay: 1000,
                duration: 1500,
                iterations: 1,
                direction: 'normal',
                easing: 'linear',
            },
            slideFromLeft: {
                start: {
                    left: 0,
                },
                end: {
                    left: object.left,
                },
                delay: 1000,
                duration: 2000,
                iterations: 1,
                direction: 'normal',
                easing: 'easeInOutExpo', 
            },
        ]
    }
}