Lenses：可组合函数式编程的 Getter 和 Setter #4961
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EmilyQiRabbit
changed the title
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@EmilyQiRabbit @leviding 校对认领 |
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@Moonliujk 好的呢 🍺 |
Moonliujk
reviewed
Jan 10, 2019
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| > **Note:** This is part of the [**“Composing Software” book**](https://leanpub.com/composingsoftware) that started life right here as a blog post series. It covers functional programming and compositional software techniques in JavaScript (ES6+) from the ground up. | ||
| > [_< Previous_](https://github.com/xitu/gold-miner/blob/master/TODO1/transducers-efficient-data-processing-pipelines-in-javascript.md) _|_ [_<< Start over at Part 1_](https://juejin.im/post/5c0dd214518825444758453a) | ||
| > **注意：**本篇是[**“Composing Software” 这本书**](https://leanpub.com/composingsoftware)的一部分，它将以系列博客的形式展开新生。它涵盖了 JavaScript（ES6+）函数式编程和可组合软件技术的最基础的知识。 |
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| Imagine you have a tuple array representing a point’s `x`, `y`, and `z` coordinates: | ||
| 假设你有一个元组数组（tuple array），代表了一个包含 `x`，`y` 和 `z`三点的坐标： |
| 1. `view(lens, set(lens, a, store)) ≡ a` — If you set a value into the store, and immediately view the value through the lens, you get the value that was set. | ||
| 2. `set(lens, b, set(lens, a, store)) ≡ set(lens, b, store)` — If you set a lens value to `a` and then immediately set the lens value to `b`, it's the same as if you'd just set the value to `b`. | ||
| 3. `set(lens, view(lens, store), store) ≡ store` — If you get the lens value from the store, and then immediately set that value back into the store, the value is unchanged. | ||
| 1. `view(lens, set(lens, a, store)) ≡ a` -- 如果你将一组值设置到一个 store 里，并且马上通过 lens 看到了值，你将能获取到这个被设置的值。 |
| @@ -168,9 +167,9 @@ const store = fooStore; | |||
| } | |||
| ``` | |||
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| ### Composing Lenses | |||
| ### 编写 Lenses | |||
There was a problem hiding this comment.
编写 Lenses
=》
组合 Lenses
composing 这里应该翻译为 组合
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| * * * | ||
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| **_Eric Elliott_** _is a distributed systems expert and author of the books,_ [_“Composing Software”_](https://leanpub.com/composingsoftware) _and_ [_“Programming JavaScript Applications”_](https://ericelliottjs.com/product/programming-javascript-applications-ebook/)_. As co-founder of_ [_DevAnywhere.io_](https://devanywhere.io/)_, he teaches developers the skills they need to work remotely and embrace work/life balance. He builds and advises development teams for crypto projects, and has contributed to software experiences for_ **_Adobe Systems,_** **_Zumba Fitness,_** **_The Wall Street Journal,_** **_ESPN,_** **_BBC,_** _and top recording artists including_ **_Usher, Frank Ocean, Metallica,_** _and many more._ | ||
| **Eric Elliott** 是一名分布式系统专家，也是书籍 [“Composing Software”](https://leanpub.com/composingsoftware) 和 [“Programming JavaScript Applications”](https://ericelliottjs.com/product/programming-javascript-applications-ebook/) 的作者。作为 [DevAnywhere.io](https://devanywhere.io/) 的合作创始人，他教给开发人员远程工作的技能，并鼓励他们找到工作和生活的平衡。他构建加密项目并鼓励开发团队使用它，并且为 **Adobe Systems，****Zumba Fitness，****The Wall Street Journal，****ESPN，****BBC，**和包括 **Usher，Frank Ocean，Metallica 等很多顶级音乐艺术家** 等等提供开发经验。 |
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@EmilyQiRabbit @leviding 校对完毕 |
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@EmilyQiRabbit 可以修改啦 |
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@Moonliujk 感谢帮忙校对～ |
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@EmilyQiRabbit 可以修改啦 |
leviding
added
延期啦，大大们赶紧哒
标注
leviding
approved these changes
Jan 14, 2019
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这篇我发布吧 |
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@leviding 感谢～ |
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译文翻译完成，resolve #4927