A settings object is anenvironmentthat provides additional information when JavaScript code is running. This includes the realm and module map, as well as HTML specific information such as the origin. The incumbent settings object is tracked in order to ensure that the browser knows which one to...
The definition of 'Promise' in that specification. Draft Browser compatibilityTo contribute to this compatibility data, please write a pull request against this file: https://github.com/mdn/browser-compat-data/blob/master/javascript/promise.json....
status: 'rejected'; reason: any; } type PromiseSettledResult<T> = PromiseFulfilledResult<T> | PromiseRejectedResult; interface PromiseConstructor { allSettled<T extends readonly unknown[] | readonly [unknown]>( values: T ): Promise< { -readonly [P in keyof T]: PromiseSettledResult<T[P] ...
在向Java传递原生JavaScript对象时,你可以使用ScriptObjectMirror类,它实际上是底层JavaScript对象的Java表示。ScriptObjectMirror实现了Map接口,位于jdk.nashorn.api中。这个包中的类可以用于客户端代码。 下面的例子将参数类型从Object改为ScriptObjectMirror,所以我们可以从传入的JavaScript对象中获得一些信息。 static void f...
ECMAScript 2015 (6th Edition, ECMA-262)The definition of 'Promise.race' in that specification. Standard Initial definition in an ECMA standard. ECMAScript Latest Draft (ECMA-262)The definition of 'Promise.race' in that specification. Living Standard ...
ECMAScript 2015 (6th Edition, ECMA-262)Promise.all Standard Initial definition in an ECMA standard. ECMAScript Latest Draft (ECMA-262)Promise.all Draft 浏览器兼容性Update compatibility data on GitHub DesktopMobileServer ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox...
Not to be confused with:Several other languages have mechanisms for lazy evaluation and deferring a computation, which they also call "promises", e.g. Scheme. Promises in JavaScript represent processes that are already happening, which can be chained with callback functions. If you are looking ...
Using JavaScript Promise can improve the readability of the JS program. The JavaScript Promise can better handle all the asynchronous operations. The JavaScript Promise provides an efficient flow of management definition in asynchronous logic. Promise deals with errors more efficiently than other convention...
// GET request for remote image in node.jsaxios({method:'get',url:'https://bit.ly/2mTM3nY',responseType:'stream'}) .then(function(response){ response.data.pipe(fs.createWriteStream('ada_lovelace.jpg')) }); axios(url[, config]) ...
Promises for Node.js, written in TypeScript and distributed in JavaScript, along with a TypeScript definition file at the root (promise.d.ts). These promise classes and functions "mostly" behave like jQuery promises, so you can refer tojQuery documentationfor more detailed information. ...