# 4. Composition API VS Option API

## 1) Option API的问题

- 在传统的Vue OptionsAPI中，新增或者修改一个需求，就需要分别在data，methods，computed里修改 ，滚动条反复上下移动



![](https://p3-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/f84e4e2c02424d9a99862ade0a2e4114~tplv-k3u1fbpfcp-watermark.image)

![](https://p9-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/e5ac7e20d1784887a826f6360768a368~tplv-k3u1fbpfcp-watermark.image)

## 2) 使用Compisition API 

我们可以更加优雅的组织我们的代码，函数。让相关功能的代码更加有序的组织在一起

![](https://p3-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/bc0be8211fc54b6c941c036791ba4efe~tplv-k3u1fbpfcp-watermark.image)

![](https://p9-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/6cc55165c0e34069a75fe36f8712eb80~tplv-k3u1fbpfcp-watermark.image)



![](https://p6-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/2c421e5392504ecc94c222057dba338a~tplv-k3u1fbpfcp-watermark.image)