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@@ -1,5 +1,26 @@
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# ES Next
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+## Pipeline Operator (Proposal)
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+
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+目前处于草稿阶段: <https://github.com/tc39/proposal-pipeline-operator>
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+
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+```js
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+function doubleSay(str) {
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+ return `${str}, ${str}`;
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+}
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+function capitalize(str) {
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+ return str[0].toUpperCase() + str.substring(1);
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+}
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+function exclaim(str) {
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+ return `${str}!`;
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+}
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+
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+let result = "hello" |> doubleSay |> capitalize |> exclaim;
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+
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+result |> console.log;
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+//=> "Hello, hello!"
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+```
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+
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## Async (ES 7)
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```js
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