From d94b4f47476bbc901753f68d6dfe317e1c5c732e Mon Sep 17 00:00:00 2001 From: MDN Date: Sat, 29 May 2021 01:14:43 +0000 Subject: [CRON] sync translated content --- .../operators/pipeline_operator/index.html | 76 ---------------------- 1 file changed, 76 deletions(-) delete mode 100644 files/zh-cn/web/javascript/reference/operators/pipeline_operator/index.html (limited to 'files/zh-cn/web/javascript/reference') diff --git a/files/zh-cn/web/javascript/reference/operators/pipeline_operator/index.html b/files/zh-cn/web/javascript/reference/operators/pipeline_operator/index.html deleted file mode 100644 index d8087ba0e3..0000000000 --- a/files/zh-cn/web/javascript/reference/operators/pipeline_operator/index.html +++ /dev/null @@ -1,76 +0,0 @@ ---- -title: 管道操作符 -slug: Web/JavaScript/Reference/Operators/Pipeline_operator -tags: - - Experimental - - JavaScript - - Operator - - 语法糖 - - 链式 - - 链式调用 -translation_of: Web/JavaScript/Reference/Operators/Pipeline_operator -original_slug: Web/JavaScript/Reference/Operators/管道操作符 ---- -
{{jsSidebar("Operators")}} {{SeeCompatTable}}
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试验性的管道操作符 |> (目前其标准化流程处于 stage 1 阶段)允许以一种易读的方式去对函数链式调用。本质上来说,管道操作符是单参数函数调用的语法糖,它允许你像这样执行一个调用:

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let url = "%21" |> decodeURI;
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使用传统语法写的话,等效的代码是这样的:

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let url = decodeURI("%21");
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语法

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expression |> function
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例子

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函数链式调用

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当链式调用多个函数时,使用管道操作符可以改善代码的可读性。

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const double = (n) => n * 2;
-const increment = (n) => n + 1;
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-// 没有用管道操作符
-double(increment(double(5))); // 22
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-// 用上管道操作符之后
-5 |> double |> increment |> double; // 22
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规范

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规范状态备注
Pipeline operator draftStage 1Not part of the ECMAScript specification yet.
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浏览器兼容性Edit

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{{Compat("javascript.operators.pipeline")}}

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参见

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