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[vue] 说说你对单向数据流和双向数据流的理解 #365

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haizhilin2013 opened this issue Jun 20, 2019 · 3 comments
Open

[vue] 说说你对单向数据流和双向数据流的理解 #365

haizhilin2013 opened this issue Jun 20, 2019 · 3 comments
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@haizhilin2013
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[vue] 说说你对单向数据流和双向数据流的理解
@haizhilin2013 haizhilin2013 added the vue vue label Jun 20, 2019
@maozhuo123
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单向数据流：所有状态的改变可记录、可跟踪，源头易追溯；所有数据只有一份，组件数据只有唯一的入口和出口，使得程序更直观更容易理解，有利于应用的可维护性；一旦数据变化，就去更新页面(data-页面)，但是没有(页面-data)；如果用户在页面上做了变动，那么就手动收集起来(双向是自动)，合并到原有的数据中。
双向数据流：无论数据改变，或是用户操作，都能带来互相的变动，自动更新。

@radio-qq
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radio-qq commented Jan 1, 2021

解释楼上有了，举例就是：父传子的props就是单向数据流，v-model就是双向数据流

@fantasy955
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基本上vue还是单向的数据流，只不过vue提供了双向绑定语法糖？

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@haizhilin2013 @maozhuo123 @fantasy955 @radio-qq