From 310fd066e91f454b990372ffa30e803cc8120975 Mon Sep 17 00:00:00 2001 From: Florian Merz Date: Thu, 11 Feb 2021 12:56:40 +0100 Subject: unslug zh-cn: move --- .../global_objects/promise/prototype/index.html | 116 --------------------- 1 file changed, 116 deletions(-) delete mode 100644 files/zh-cn/web/javascript/reference/global_objects/promise/prototype/index.html (limited to 'files/zh-cn/web/javascript/reference/global_objects/promise') diff --git a/files/zh-cn/web/javascript/reference/global_objects/promise/prototype/index.html b/files/zh-cn/web/javascript/reference/global_objects/promise/prototype/index.html deleted file mode 100644 index c9c7dc3f6a..0000000000 --- a/files/zh-cn/web/javascript/reference/global_objects/promise/prototype/index.html +++ /dev/null @@ -1,116 +0,0 @@ ---- -title: Promise.prototype -slug: Web/JavaScript/Reference/Global_Objects/Promise/prototype -translation_of: Web/JavaScript/Reference/Global_Objects/Promise -translation_of_original: Web/JavaScript/Reference/Global_Objects/Promise/prototype ---- -
{{JSRef("Global_Objects", "Promise")}}
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总结

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Promise.prototype 属性表示 {{jsxref("Promise")}} 构造器的原型.

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{{js_property_attributes(0,0,0)}}
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描述

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{{jsxref("Promise")}} 实例继承自 {{jsxref("Promise.prototype")}}. 你可以在构造器的原型对象添加属性或方法到所有 Promise 实例上.

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属性

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Promise.prototype.constructor
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返回被创建的实例函数.  默认为 {{jsxref("Promise")}} 函数.
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方法

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{{jsxref("Promise.catch", "Promise.prototype.catch(onRejected)")}}
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添加一个拒绝(rejection) 回调到当前 promise, 返回一个新的promise。当这个回调函数被调用，新 promise 将以它的返回值来resolve，否则如果当前promise 进入fulfilled状态，则以当前promise的完成结果作为新promise的完成结果.
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{{jsxref("Promise.then", "Promise.prototype.then(onFulfilled, onRejected)")}}
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添加解决(fulfillment)和拒绝(rejection)回调到当前 promise, 返回一个新的 promise, 将以回调的返回值来resolve.
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{{jsxref("Promise.finally", "Promise.prototype.finally(onFinally)")}}
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添加一个事件处理回调于当前promise对象，并且在原promise对象解析完毕后，返回一个新的promise对象。回调会在当前promise运行完毕后被调用，无论当前promise的状态是完成(fulfilled)还是失败(rejected)
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规范

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SpecificationStatusComment
{{SpecName('ES6', '#sec-promise.prototype', 'Promise.prototype')}}{{Spec2('ES6')}}Initial definition.
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浏览器兼容

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{{CompatibilityTable}}

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FeatureChromeFirefox (Gecko)Internet ExplorerOperaSafari
Basic support32{{CompatGeckoDesktop(24.0)}} as Future
- {{CompatGeckoDesktop(25.0)}} as Promise behind a flag[1]
- {{CompatGeckoDesktop(29.0)}} by default		{{CompatNo}}197.1
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FeatureAndroidFirefox Mobile (Gecko)IE MobileOpera MobileSafari MobileChrome for Android
Basic support{{CompatNo}}{{CompatGeckoMobile(24.0)}} as Future
- {{CompatGeckoMobile(25.0)}} as Promise behind a flag[1]
- {{CompatGeckoMobile(29.0)}} by default		{{CompatNo}}{{CompatNo}}iOS 832
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[1] Gecko 24 has an experimental implementation of Promise, under the initial name of Future. It got renamed to its final name in Gecko 25, but disabled by default behind the flag dom.promise.enabled. Bug 918806 enabled Promises by default in Gecko 29.

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另见

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