use-onion

应用洋葱模型到任意函数

安装

``
npm i use-onion --save
`

$3

`javascript
// 以提交表单前的数据处理为例, 对title进行trim
import useOnion from 'use-onion'
let {curr_base_hook} = useOnion
const ctx = {
form:{
data:{ title:' 标题 ' }
},
table:{ data:[] }
}
const customHook = {
onSubmit: [
async (ctx, next)=>{
let formData = ctx.form.data;
formData.title = formData.title.trim()
await next()
}, // 调用baseHook中的同名方法
curr_base_hook
]
}
const baseHook = {
onSubmit: async (ctx, next)=>{
console.log('提交成功', ctx.form.data);
await next()
}
}
const hooks = useOnion(ctx, {customHook, baseHook})
// "提交成功"后面对象的title已经被trim了
hooks.onSubmit()
``

$3