Speeding up and down the video by moving up and down that fancy slider back and forth… That sounds boring.

I think day 11 JavaScript challenge is more challenging than this, but who am I to complain? Just finish the challenge and move on the next challenge. I am not in the mood of explaining. Here’s the demo.

I don’t think we can understand how it works by simply reading the snippet below…

I really miss ちえさ せれな.