When user forgot to type the name or price properly, the alert will be trigger.

I want make this project as simple as possible. Have fun~

External npm package usage:

In the reason of the composing multi class style in one element. I take this module for a convenient solution.

For the usage of writing css in js. The one I am familiar with is materi-ui, but this time I just need a css-complier. Aslo that will support a better way let me ueuse the style.

Other Resource:

�Include this package by CDN. Benefit: accelerate user-end to load the Icon resource. Why not use image as icon? Ans: In the most of website, images were the bottleneck of bandwidth and sometimes will cause the pixel issue to address. If choose svg icon. More lighter and woundn't bother of pixel.